The love you have for your dog is hard to beat, even by your soulmate. For Millennials, dogs have become like children, and for Boomers, they’re the new grandchild. Treat your furry friend to the best: the Seresto Large Dog Vet-Recommended Flea & Tick Treatment and Prevention Collar.

Thanks to the Amazon Big Spring Sale going on now through March 31, it’s 20% off!

Unlike Prime Day, this sale is open to all Amazon customers. However, Prime members will get exclusive deals and early access to certain promotions. Not a member? Sign up for a 30-day free trial.

There’s nothing better than finding great deals on products you know you’ll need, like trash bags, air purifiers, and more. As summer approaches, make sure your pup is protected from Lyme disease and other potential threats with the right precautions. Don’t miss out on this lightning deal!

Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar

Seresto is the #1 veterinarian-recommended flea and tick collar, trusted for its effectiveness in protecting your dog. It kills and repels fleas and ticks on contact, so pests don’t have to bite your dog to be eliminated.

With same-day effectiveness, Seresto starts killing fleas within 24 hours and eliminates reinfesting ticks in as little as six hours. Two collars come in a single pack!

To use, simply attach the collar snugly so it makes contact with your dog’s skin and fur. Use the 2-finger rule to adjust it for comfort, and trim any excess collar unless your dog is still growing.

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Your Amazon Big Spring Sale FAQs, answered

What is Amazon’s Big Spring Sale?

The Big Spring Sale is an Amazon-hosted seasonal sale event aimed at popular products to shop for spring. It’s similar to Amazon Prime Day, offering a wide range of deals and discounts on various products, spanning the final week of March.

How long does the Big Spring Sale last?

Shoppers have 7 days to take advantage of discounts. This sale runs a full week, beginning at 12 a.m. PT on Tuesday, March 25, through 11:59 p.m. PT on Monday, March 31.

When does the Big Spring Sale end?

The Big Spring Sale ends March 31 at 11:59 p.m. Pacific time, so east-coasters have until about 3 a.m. on April 1 their time to shop the deals.

Do you have to have Amazon Prime to shop the Big Spring Sale?

Unlike Prime Day, the Spring Sale is open to all Amazon shoppers. However, Prime members will enjoy exclusive deals and early access to certain promotions. Interested shoppers can grab a 30-day free trial to try Prime, and its many benefits, with no strings attached.

What are the best Big Spring Sale deals?

From reporting on Amazon sales throughout the years, we can tell you for certain that it’s the ideal period to upgrade your outdoor furniture, restock spring cleaning supplies, find new spring fashion pieces and comb through the massive catalog of Amazon best-sellers.

When is the next Prime Day?

Already wondering when the next Amazon Prime Day is? Prime Day takes place in July each year. While Amazon hasn’t confirmed the dates for Prime Day 2025, it’s safe to assume it will take place in mid-July — similar to previous years.

Don’t miss Post Wanted’s around-the-clock coverage. Click here to find all of the best deals.

Why Trust Post Wanted by the New York Post

This article was written by Emma Sutton-Williams, New York Post Commerce Reporter. Proud dog mom to a Mini Sheepadoodle named Lucy, Emma routinely tests top-rated pet products with her pup to find the best recommendations for fellow pet owners. In search of the best dog food brands, leashes, harnesses and more, Emma taps veterinarians and experts like Cesar Millan, better known as the “Dog Whisperer,” for pet health advice, FAQs and training secrets. In addition to her work at the Post, Emma’s byline has appeared in Rolling Stone, Oprah Daily, Parents, InStyle, StyleCaster and more.