Q: Best items to save on today with PetSupplies.com coupon codes?

Today's best petsupplies.com coupon codes offer savings on a variety of items: 40% off on Flea, Tick & Heartworm with Autoship Up to 50% off Fish-e-Specials 10% off Treats 10% off Cat Food 20% off on any combo of a Collar, Leash, Harness Or Id Tag An additional 20% off on Sale Items Remember, these codes are subject to change and may have certain terms and conditions. Always check the official website for the most current sales events and deals. Happy shopping!

Q: How many coupons is PetSupplies.com offering today?

Based on the most recent data, petsupplies.com is offering two active coupons today. One coupon provides 30% off your order, and the other offers 10% off plus $1.99 shipping for orders over $69. Additionally, there is a 20% off coupon for orders over $79. Please note that these offers are subject to change and may have certain terms and conditions. It's always a good idea to check the website for the most current deals. Happy shopping!

Q: Why You Won’t Always Find A Working Coupon Code PetSupplies.com

Finding a working coupon code for petsupplies.com can sometimes be challenging due to several reasons: Expiration : Coupon codes often have an expiration date. After this date, they are no longer valid. Specific Conditions : Some codes are only valid for certain products or categories. If the items in the cart do not meet these conditions, the code will not work. One-time Use : Some codes can only be used once. If the code has been used before, it will not work again. Geographical Restrictions : Some codes are only valid in certain regions or countries. If the user is not in the specified area, the code will not work. Minimum Purchase Requirement : Some codes require a minimum purchase amount. If the total cost of the items in the cart is less than this amount, the code will not work. Remember, always check the terms and conditions of the coupon code before using it to avoid any disappointment. If a code is not working, it's always worth trying another one. Happy shopping!

Q: How often does PetSupplies.com release discount codes?

Petsupplies.com releases new promo codes every 18 days on average. However, some sources suggest that new promo codes are found every 30 days . These codes can provide discounts of up to 15% . It's always a good idea to check their official website or other coupon sites for the most up-to-date promo codes and discounts. Remember, these release frequencies are averages and actual release dates may vary.

Q: How long do PetSupplies.com coupons last?

Coupon Duration Variability Petsupplies.com coupons have no fixed duration ; validity depends on specific code, promotion type, and retailer policies. **Key Factors from Search Results** - **Expiration dates**: Codes expire after set periods (e.g., **June 26, 2025** for SPPS30, SPPETS10 per ; some listed as "ending soon" or event-limited in ). - **Limited-time offers**: Often last **days to months** (e.g., seasonal summer/winter discounts per ). - **Usage limits**: Single-use, first-time buyer only, or reach max uses (errors: **"This code is no longer valid"**, **"Code already used"** per ). - **Average release**: **~300 days** between new codes; **0.1 per month** historically (). - **Invalidation reasons**: Expiration, order ineligibility, or retailer revocation (, ). **Verification Tips** Test codes at checkout; check **validity dates** and site for updates. **Points/rewards** (related via ) expire **1 year** after earning, but not direct coupons. Many listed codes from 2025 are likely **expired** as of 2026.

Q: How can I get a PetSupplies.com discount?

Getting a discount on petsupplies.com can be achieved in several ways: Coupon Codes : petsupplies.com often provides coupon codes that can be applied at checkout for a discount. These codes can be found on the petsupplies.com website or through third-party coupon sites. Sales : petsupplies.com frequently has sales on various products. These sales are often seasonal or holiday-related, such as Black Friday or Christmas sales. Email Newsletter : Subscribing to the petsupplies.com email newsletter can provide access to exclusive offers, weekly deals, product previews, and valuable pet care tips. Price Matching : petsupplies.com offers a price-matching guarantee. If an identical item is found at a lower price on a competitor's site, the price can be matched up to 14 days after purchase. Auto Ship Program : petsupplies.com’s Auto Ship program offers a convenient way for customers to receive their pet supplies regularly without having to reorder. Subscribers to this program enjoy a 10% discount on their orders. Remember, it's always important to check the terms and conditions of each discount method to ensure it can be applied to the desired purchase. Happy saving!

Q: Is PetSupplies.com promo code legit?

Yes, petsupplies.com promo codes are legitimate. They are verified and can be used to get discounts on purchases. These codes are often provided directly by petsupplies.com and can be found on their website or through third-party coupon sites. However, it's always a good idea to check the terms and conditions of each promo code before using it. Happy saving!

Q: Does PetSupplies.com have student discount?

Currently, petsupplies.com does not offer a student discount . However, there are many other ways to save on the site, such as through sales, promotional codes, and the rewards program. It's always a good idea to check the website for the most current deals and discounts. Happy shopping!

Q: How does Tenere Team find the best PetSupplies.com coupons?

The Tenere Team works diligently to find the best petsupplies.com coupons. The team has a dedicated group of deal hunters who scour the internet for the best deals and discounts. They check the petsupplies.com website regularly, subscribe to the company's newsletter, and follow their social media channels to stay updated on any new promotions or discounts. The team also collaborates with petsupplies.com directly to get exclusive coupon codes that are only available on the Tenere Team website. These codes are tested and verified before being posted to ensure they are working and valid. In addition, the Tenere Team has a user community where members share deals and coupons they've found. This community-driven aspect allows the team to offer a wide variety of deals and discounts that may not be available elsewhere. The Tenere Team takes pride in providing the most comprehensive and up-to-date coupon codes for petsupplies.com to help customers save money on their purchases. It's all about making shopping more affordable and enjoyable for everyone. Happy saving!

Question 1

What's today's best PetSupplies.com coupon?

Accepted Answer

Best Coupon: CJDG5OFF for 70% off

**Source **: Goodsearch lists CJDG5OFF as the top code from 30 available, last used March 1, 2025. Applies sitewide at petsupplies.com.

Other Strong Options

BA3DIIVVUP (): 35% off at petsupplies.com (used 40 times).
psn0910 (): $4 off select items, verified 1 day ago.
40% off sitewide (): RetailMeNot top offer for 1800PetSupplies.com.

Question 2

Best items to save on today with PetSupplies.com coupon codes?

Accepted Answer

Today's best petsupplies.com coupon codes offer savings on a variety of items:

40% off on Flea, Tick & Heartworm with Autoship
Up to 50% off Fish-e-Specials
10% off Treats
10% off Cat Food
20% off on any combo of a Collar, Leash, Harness Or Id Tag
An additional 20% off on Sale Items

Remember, these codes are subject to change and may have certain terms and conditions. Always check the official website for the most current sales events and deals. Happy shopping!

Question 3

How many coupons is PetSupplies.com offering today?

Accepted Answer

Based on the most recent data, petsupplies.com is offering two active coupons today. One coupon provides 30% off your order, and the other offers 10% off plus $1.99 shipping for orders over $69. Additionally, there is a 20% off coupon for orders over $79. Please note that these offers are subject to change and may have certain terms and conditions. It's always a good idea to check the website for the most current deals. Happy shopping!

Question 4

Why You Won’t Always Find A Working Coupon Code PetSupplies.com

Accepted Answer

Finding a working coupon code for petsupplies.com can sometimes be challenging due to several reasons:

Expiration: Coupon codes often have an expiration date. After this date, they are no longer valid.
Specific Conditions: Some codes are only valid for certain products or categories. If the items in the cart do not meet these conditions, the code will not work.
One-time Use: Some codes can only be used once. If the code has been used before, it will not work again.
Geographical Restrictions: Some codes are only valid in certain regions or countries. If the user is not in the specified area, the code will not work.
Minimum Purchase Requirement: Some codes require a minimum purchase amount. If the total cost of the items in the cart is less than this amount, the code will not work.

Remember, always check the terms and conditions of the coupon code before using it to avoid any disappointment. If a code is not working, it's always worth trying another one. Happy shopping!

Question 5

How often does PetSupplies.com release discount codes?

Accepted Answer

Petsupplies.com releases new promo codes every 18 days on average. However, some sources suggest that new promo codes are found every 30 days. These codes can provide discounts of up to 15%. It's always a good idea to check their official website or other coupon sites for the most up-to-date promo codes and discounts. Remember, these release frequencies are averages and actual release dates may vary.

Question 6

How long do PetSupplies.com coupons last?

Accepted Answer

Coupon Duration Variability

Petsupplies.com coupons have no fixed duration; validity depends on specific code, promotion type, and retailer policies.

Key Factors from Search Results

- **Expiration dates**: Codes expire after set periods (e.g., **June 26, 2025** for SPPS30, SPPETS10 per ; some listed as "ending soon" or event-limited in ). - **Limited-time offers**: Often last **days to months** (e.g., seasonal summer/winter discounts per ). - **Usage limits**: Single-use, first-time buyer only, or reach max uses (errors: **"This code is no longer valid"**, **"Code already used"** per ). - **Average release**: **~300 days** between new codes; **0.1 per month** historically (). - **Invalidation reasons**: Expiration, order ineligibility, or retailer revocation (, ).

Verification Tips

Test codes at checkout; check **validity dates** and site for updates. **Points/rewards** (related via ) expire **1 year** after earning, but not direct coupons. Many listed codes from 2025 are likely **expired** as of 2026.

Question 7

How can I get a PetSupplies.com discount?

Accepted Answer

Getting a discount on petsupplies.com can be achieved in several ways:

Coupon Codes: petsupplies.com often provides coupon codes that can be applied at checkout for a discount. These codes can be found on the petsupplies.com website or through third-party coupon sites.
Sales: petsupplies.com frequently has sales on various products. These sales are often seasonal or holiday-related, such as Black Friday or Christmas sales.
Email Newsletter: Subscribing to the petsupplies.com email newsletter can provide access to exclusive offers, weekly deals, product previews, and valuable pet care tips.
Price Matching: petsupplies.com offers a price-matching guarantee. If an identical item is found at a lower price on a competitor's site, the price can be matched up to 14 days after purchase.
Auto Ship Program: petsupplies.com’s Auto Ship program offers a convenient way for customers to receive their pet supplies regularly without having to reorder. Subscribers to this program enjoy a 10% discount on their orders.

Remember, it's always important to check the terms and conditions of each discount method to ensure it can be applied to the desired purchase. Happy saving!

Question 8

Is PetSupplies.com promo code legit?

Accepted Answer

Yes, petsupplies.com promo codes are legitimate. They are verified and can be used to get discounts on purchases. These codes are often provided directly by petsupplies.com and can be found on their website or through third-party coupon sites. However, it's always a good idea to check the terms and conditions of each promo code before using it. Happy saving!

Question 9

Does PetSupplies.com have student discount?

Accepted Answer

Currently, petsupplies.com does not offer a student discount. However, there are many other ways to save on the site, such as through sales, promotional codes, and the rewards program. It's always a good idea to check the website for the most current deals and discounts. Happy shopping!

Question 10

How does Tenere Team find the best PetSupplies.com coupons?

Accepted Answer

The Tenere Team works diligently to find the best petsupplies.com coupons. The team has a dedicated group of deal hunters who scour the internet for the best deals and discounts. They check the petsupplies.com website regularly, subscribe to the company's newsletter, and follow their social media channels to stay updated on any new promotions or discounts.

The team also collaborates with petsupplies.com directly to get exclusive coupon codes that are only available on the Tenere Team website. These codes are tested and verified before being posted to ensure they are working and valid.

In addition, the Tenere Team has a user community where members share deals and coupons they've found. This community-driven aspect allows the team to offer a wide variety of deals and discounts that may not be available elsewhere.

The Tenere Team takes pride in providing the most comprehensive and up-to-date coupon codes for petsupplies.com to help customers save money on their purchases. It's all about making shopping more affordable and enjoyable for everyone. Happy saving!

Question 11

How can I redeem a PetSupplies.com coupon codes?

Accepted Answer

To redeem a promo code on petsupplies.com, follow these steps:

Visit the petsupplies.com site and add items to the shopping cart.
On the checkout page, look for the Promo Code box.
Enter the promo code in the box and click Apply.

The discount should now be applied to the order. Remember, each promo code may have its own terms and conditions, so it's important to read them before applying the code. Happy shopping!

Question 12

What are the best sale events at PetSupplies.com?

Accepted Answer

Petsupplies.com hosts several sale events throughout the year. One of the best is the Clearance Sales Event, where customers can save on beds, toys, collars, leashes, and more. They also offer $1.99 Shipping on orders over $39. Additionally, they have Hot Deals that offer many pet products at everyday low prices. Customers can also enjoy 50% off an add-on package after 4 full-service grooms or baths, and a free add-on package after 8 full-service grooms or baths. Always check the official website for the most current sales events and deals. Happy shopping!

Question 13

Does PetSupplies.com have Black Friday sales?

Accepted Answer

Yes, petsupplies.com does have Black Friday sales. During this time, customers can find deep discounts on a wide range of products, from pet beds and rawhides to collars and kennels. The retailer often features promo codes to help customers save even more, such as 30% off the entire purchase. Additionally, petsupplies.com offers free shipping on orders of $69 or more. It's a great time to shop for your furry, feathered, or scaly friend!

Question 14

Top alternatives to PetSupplies.com for discounts and deals?

Accepted Answer

Chewy: Known for its extensive range of pet supplies, Chewy often offers discounts up to 40% on various products.

Amazon: With a massive catalog, Amazon provides discounts ranging from 10% to 50% on pet supplies, especially during sales events.

Petco: Frequently has sales and deals, with discounts up to 30% on select items.

Petsmart: Offers numerous sales and deals, with discounts up to 25% on various pet supplies.

1800PetMeds: One of the largest online pet pharmacies, offering discounts up to 20% on medications and supplies.

Wayfair: Known for pet furniture, Wayfair offers discounts up to 40% on select items.

Walmart: Provides fast shipping and discounts up to 30% on pet supplies.

Target: Offers a variety of pet toys and supplies with discounts up to 20%.

Only Natural Pet: Specializes in natural supplies with discounts up to 15%.

Dog.com: Focuses on dog supplies with discounts up to 25%.

Question 15

Does PetSupplies.com offer a discount on first purchases?

Accepted Answer

Yes, petsupplies.com offers a 30% discount on the first order, along with free shipping on orders over $69, when you sign up for their email newsletter.

Question 16

Why should I shop with PetSupplies.com?

Accepted Answer

Shopping with petsupplies.com offers several benefits:

Wide Selection: petsupplies.com provides a vast selection of pet supplies. Customers can find everything they need for their pets, from food and toys to bedding and health products.
Competitive Prices: The prices on petsupplies.com are often lower than those in physical pet stores. They also offer regular sales and discounts, helping customers save even more.
Convenience: Shopping online with petsupplies.com allows customers to browse and purchase products at any time, from the comfort of their own home. This can be particularly beneficial for those who live far from a pet store or have a busy schedule.
Rewards Program: petsupplies.com offers a rewards program where customers can earn points for every purchase. These points can be redeemed for free products, providing additional savings.
Customer Reviews: petsupplies.com features customer reviews for many of their products. These reviews can help customers make informed decisions about which products are best for their pets.

Remember, it's always important to research and compare different retailers to ensure you're getting the best deal and service. Happy shopping!

Question 17

What are the payment methods at petsupplies.com?

Accepted Answer

Petsupplies.com accepts a variety of payment methods. These include credit cards (such as Visa, MasterCard, Discover, and American Express), PayPal, and gift cards. Please note that the available payment methods may vary depending on the country and the specific terms and conditions of the website. It's always a good idea to check the official website for the most accurate and up-to-date information. Happy shopping!

Question 18

What are the best-selling products on PetSupplies.com?

Accepted Answer

The search results do not provide specific information about the best-selling products on petsupplies.com. However, some popular categories and products include:

Dog Collars: Adjustable Check Choke Dog Collar
Leads: British Rope Slip Dog Lead
Treats: Stewart Freeze Dried Beef Liver Dog Treat
Bowls: Indipets Stainless Steel No-Tip Dog Bowl
Toys: SPOT Latex 2-Inch Soccer Ball Dog Toy

For precise best-selling items, more specific data would be needed.

Question 19

PetSupplies.com Free Shipping Policy

Accepted Answer

Yes, petsupplies.com does offer free shipping. Here's what you need to know about their policy:

Free shipping is available on orders over $99.
For orders that are less than $99, there are often codes available for free shipping.
The free shipping offer applies to Economy Shipping only in the 48 contiguous states.
For all orders that are 30 pounds or over, a nominal charge of $.30/lb will be added to your order for Economy shipping.
Please note that due to carrier restrictions, some products shipping to the 48 contiguous states must be sent via Ground Shipping and are not available for Economy Shipping.
Reduced shipping offer does not apply to oversized products requiring Motor Freight delivery.

Remember, it's always a good idea to check the website for the most current deals and policies. Happy shopping!

Question 20

What is PetSupplies.com return policy?

Accepted Answer

The return policy of petsupplies.com is as follows:

There is a 30-Day Return Policy. If not completely satisfied with an item, it may be returned within 30 days from the date received.
The item(s) must be new, unused, in original condition and box, including all parts, accessories, and packaging.
To return an item, a Return Authorization Number (RA#) and shipping instructions must be obtained. This number should be written visibly on the outside of the shipping package and on the packing slip.
Returns that are shipped without an RA# may have processing delays up to 45 days and will be charged a 10% processing fee.
There will be a 20% restock fee for any items returned dirty, traces of animal hair, missing parts or packaging, or if the product is deemed unsellable.
Return shipping costs are non-refundable, unless the item is being returned as a result of an error (damaged, defective, wrong item sent, etc.)
If an item is missing, damaged, defective, or incorrect, contact must be made within 10 days upon receipt of the package.
After 10 days, the manufacturer must be contacted about defective or damaged merchandise.
Prescription Medications and Vaccines are not returnable. Federal and state regulations prohibit the return for these items except in the unlikely event they are subject to manufacturer recall.

Please note that this information is subject to change and it's always a good idea to check the latest return policy on the website.

Question 21

What's today's best PetSupplies.com coupon?

Accepted Answer

Best Coupon: CJDG5OFF for 70% off

**Source **: Goodsearch lists CJDG5OFF as the top code from 30 available, last used March 1, 2025. Applies sitewide at petsupplies.com.

Other Strong Options

BA3DIIVVUP (): 35% off at petsupplies.com (used 40 times).
psn0910 (): $4 off select items, verified 1 day ago.
40% off sitewide (): RetailMeNot top offer for 1800PetSupplies.com.

Question 22

Best items to save on today with PetSupplies.com coupon codes?

Accepted Answer

Today's best petsupplies.com coupon codes offer savings on a variety of items:

40% off on Flea, Tick & Heartworm with Autoship
Up to 50% off Fish-e-Specials
10% off Treats
10% off Cat Food
20% off on any combo of a Collar, Leash, Harness Or Id Tag
An additional 20% off on Sale Items

Remember, these codes are subject to change and may have certain terms and conditions. Always check the official website for the most current sales events and deals. Happy shopping!

Question 23

How many coupons is PetSupplies.com offering today?

Accepted Answer

Based on the most recent data, petsupplies.com is offering two active coupons today. One coupon provides 30% off your order, and the other offers 10% off plus $1.99 shipping for orders over $69. Additionally, there is a 20% off coupon for orders over $79. Please note that these offers are subject to change and may have certain terms and conditions. It's always a good idea to check the website for the most current deals. Happy shopping!

Question 24

Why You Won’t Always Find A Working Coupon Code PetSupplies.com

Accepted Answer

Finding a working coupon code for petsupplies.com can sometimes be challenging due to several reasons:

Expiration: Coupon codes often have an expiration date. After this date, they are no longer valid.
Specific Conditions: Some codes are only valid for certain products or categories. If the items in the cart do not meet these conditions, the code will not work.
One-time Use: Some codes can only be used once. If the code has been used before, it will not work again.
Geographical Restrictions: Some codes are only valid in certain regions or countries. If the user is not in the specified area, the code will not work.
Minimum Purchase Requirement: Some codes require a minimum purchase amount. If the total cost of the items in the cart is less than this amount, the code will not work.

Remember, always check the terms and conditions of the coupon code before using it to avoid any disappointment. If a code is not working, it's always worth trying another one. Happy shopping!

Question 25

How often does PetSupplies.com release discount codes?

Accepted Answer

Petsupplies.com releases new promo codes every 18 days on average. However, some sources suggest that new promo codes are found every 30 days. These codes can provide discounts of up to 15%. It's always a good idea to check their official website or other coupon sites for the most up-to-date promo codes and discounts. Remember, these release frequencies are averages and actual release dates may vary.

Question 26

How long do PetSupplies.com coupons last?

Accepted Answer

Coupon Duration Variability

Petsupplies.com coupons have no fixed duration; validity depends on specific code, promotion type, and retailer policies.

Key Factors from Search Results

- **Expiration dates**: Codes expire after set periods (e.g., **June 26, 2025** for SPPS30, SPPETS10 per ; some listed as "ending soon" or event-limited in ). - **Limited-time offers**: Often last **days to months** (e.g., seasonal summer/winter discounts per ). - **Usage limits**: Single-use, first-time buyer only, or reach max uses (errors: **"This code is no longer valid"**, **"Code already used"** per ). - **Average release**: **~300 days** between new codes; **0.1 per month** historically (). - **Invalidation reasons**: Expiration, order ineligibility, or retailer revocation (, ).

Verification Tips

Test codes at checkout; check **validity dates** and site for updates. **Points/rewards** (related via ) expire **1 year** after earning, but not direct coupons. Many listed codes from 2025 are likely **expired** as of 2026.

Question 27

How can I get a PetSupplies.com discount?

Accepted Answer

Getting a discount on petsupplies.com can be achieved in several ways:

Coupon Codes: petsupplies.com often provides coupon codes that can be applied at checkout for a discount. These codes can be found on the petsupplies.com website or through third-party coupon sites.
Sales: petsupplies.com frequently has sales on various products. These sales are often seasonal or holiday-related, such as Black Friday or Christmas sales.
Email Newsletter: Subscribing to the petsupplies.com email newsletter can provide access to exclusive offers, weekly deals, product previews, and valuable pet care tips.
Price Matching: petsupplies.com offers a price-matching guarantee. If an identical item is found at a lower price on a competitor's site, the price can be matched up to 14 days after purchase.
Auto Ship Program: petsupplies.com’s Auto Ship program offers a convenient way for customers to receive their pet supplies regularly without having to reorder. Subscribers to this program enjoy a 10% discount on their orders.

Remember, it's always important to check the terms and conditions of each discount method to ensure it can be applied to the desired purchase. Happy saving!

Question 28

Is PetSupplies.com promo code legit?

Accepted Answer

Yes, petsupplies.com promo codes are legitimate. They are verified and can be used to get discounts on purchases. These codes are often provided directly by petsupplies.com and can be found on their website or through third-party coupon sites. However, it's always a good idea to check the terms and conditions of each promo code before using it. Happy saving!

Question 29

Does PetSupplies.com have student discount?

Accepted Answer

Currently, petsupplies.com does not offer a student discount. However, there are many other ways to save on the site, such as through sales, promotional codes, and the rewards program. It's always a good idea to check the website for the most current deals and discounts. Happy shopping!

Question 30

How does Tenere Team find the best PetSupplies.com coupons?

Accepted Answer

The Tenere Team works diligently to find the best petsupplies.com coupons. The team has a dedicated group of deal hunters who scour the internet for the best deals and discounts. They check the petsupplies.com website regularly, subscribe to the company's newsletter, and follow their social media channels to stay updated on any new promotions or discounts.

The team also collaborates with petsupplies.com directly to get exclusive coupon codes that are only available on the Tenere Team website. These codes are tested and verified before being posted to ensure they are working and valid.

In addition, the Tenere Team has a user community where members share deals and coupons they've found. This community-driven aspect allows the team to offer a wide variety of deals and discounts that may not be available elsewhere.

The Tenere Team takes pride in providing the most comprehensive and up-to-date coupon codes for petsupplies.com to help customers save money on their purchases. It's all about making shopping more affordable and enjoyable for everyone. Happy saving!

Question 31

What are the best sale events at PetSupplies.com?

Accepted Answer

Petsupplies.com hosts several sale events throughout the year. One of the best is the Clearance Sales Event, where customers can save on beds, toys, collars, leashes, and more. They also offer $1.99 Shipping on orders over $39. Additionally, they have Hot Deals that offer many pet products at everyday low prices. Customers can also enjoy 50% off an add-on package after 4 full-service grooms or baths, and a free add-on package after 8 full-service grooms or baths. Always check the official website for the most current sales events and deals. Happy shopping!

Question 32

Does PetSupplies.com have Black Friday sales?

Accepted Answer

Yes, petsupplies.com does have Black Friday sales. During this time, customers can find deep discounts on a wide range of products, from pet beds and rawhides to collars and kennels. The retailer often features promo codes to help customers save even more, such as 30% off the entire purchase. Additionally, petsupplies.com offers free shipping on orders of $69 or more. It's a great time to shop for your furry, feathered, or scaly friend!

Question 33

Top alternatives to PetSupplies.com for discounts and deals?

Accepted Answer