With summer heating up, staying hydrated is top of mind.

But before you reach for another glass of water, there’s another concern worth considering: microplastics contaminating your water.

PFAS, short for per- and polyfluoroalkyl substances, are synthetic chemicals found in everything from fast-food packaging and nonstick cookware to stain-resistant fabrics and, in some areas, drinking water. They can accumulate in the body over time and have been linked to a range of serious health issues.

The good news? There are some very simple steps you can take at home to help reduce exposure. Among the most effective (and editor-approved) options are reverse osmosis (RO) filtration systems, which force water through an ultra-fine membrane designed to remove a wide range of contaminants and microplastics.

And, just in time for Prime Day, running June 23 through June 26, Waterdrop Filter is offering up to 30% off a wide range of sleek filtration systems designed to fit virtually any household. Whether you’re looking for a high-capacity system that can handle everyday drinking, cooking, and entertaining, or a compact, renter-friendly option for a smaller space, there’s likely a solution at Waterdrop.

Shoppers can score up to $700 off Waterdrop Filter’s sleek, tankless reverse osmosis systems, built to keep up with the demands of busy families and summer hosting needs. Or, for those working with less space, the brand’s portable water filter offers a convenient way to enjoy cleaner-tasting water on demand.

Beyond the simple set-ups, fast flow rates and advanced filtration technology, many Waterdrop Filter’s customers also rave that the systems deliver noticeably better-tasting water, making it easier and more enjoyable to remember to stay hydrated through the day.

Summer is the perfect time to invest in cleaner, fresher-tasting water, and these Prime Day Waterdrop filter deals won’t last long. If you’ve been thinking about making the switch, now’s the time to act.

This smart, high-performance tankless reverse osmosis water system is a standout model, featuring an efficient 3:1 pure-to-drain ratio designed to handle the drinking and cooking needs of larger families with ease. It’s a best-seller on Amazon for several reasons.

According to Waterdrop Filter, it effectively reduces PFAS, fluoride, heavy metals such as lead, chromium, and iron, as well as contaminants like nitrates and chlorides, and radioactive substances. And, it meets NSF/ANSI certifications, making it a top choice for those who value high safety standards.

With an impressive 800 gallons per day of output, the G3P800 delivers consistently purified water with a fast flow rate. The brand states it can filter a cup of water in about five seconds. And, reviewers also note that the pump sound is “minimal and not bothersome at all.”

Beyond the smart faucet that displays real-time water quality, this system also includes built-in LED indicators that clearly alert you when it’s time to replace the filters. Users say installation is simple, water flow is excellent and the compact design frees up under-sink space.

For health-conscious homeowners and larger families, the Waterdrop X Series Undersink Reverse Osmosis System X16 is a smart long-term investment for cleaner, better-quality drinking water.

The system features an impressive 11-stage RO filtration system, enhanced with alkaline minerals, which is said to help improve taste and purity for drinking and cooking. The 1600 GPD high-flow design also delivers water fast — filling a 6-ounce cup in just about 2 seconds.

A smart faucet displays real-time water quality levels, while the tankless design saves space and keeps your kitchen looking clean and modern. With an efficient 3:1 pure-to-drain ratio and straightforward installation, it’s designed to be both high-performing and user-friendly without the bulky setup.

If you’re not quite ready to invest in a permanent under-sink reverse osmosis system, the Waterdrop PT-72W Glass Water Filter Pitcher is a simple, portable alternative that comes at a fraction of the price.

It uses a 5-stage filtration system and a fast flow rate to deliver cleaner, better-tasting water with minimal wait time, and it fits neatly in your fridge — making it especially useful for families and anyone who loves to entertain. According to Waterdrop Filter, it delivers a high flow rate of 8.5 ounces/min, filling an 8-ounce cup in under a minute — up to 10-times faster than standard pitchers.

The glass exterior offers a more refined, elevated look and the durable inner liner adds impact resistance for everyday use. Users say it’s also easy to clean, making it a simple, stylish upgrade for daily hydration.

Your Amazon Prime Day FAQs, answered

What is Amazon Prime Day and when is it?

Prime Day is Amazon’s biggest sale of the year, offering deep discounts on bestsellers and everyday essentials. This year’s event runs from Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

How long is Prime Day?

This year, shoppers can take advantage of four days of Prime Day deals: Tuesday, June 23 at 3 a.m. ET through Saturday, June 27 at 3 a.m. ET.

What’s new about Prime Day in 2026?

In addition to pushing up the sale to June, Amazon is including several new programs and promotions, including:

• Today’s Big Deals program: New daily discounts up to 50% off or more
• New deals dropping as often as every five minutes during the sale
• Prime members gain access to exclusive travel deals
• Prime members who spend $15 or more on a qualifying online grocery order have a chance to win free groceries for a year
• Prime members who set up a deal alert with Alexa have a chance to win a $1,000 Amazon gift card
• Through June 26, Prime members can get a large pepperoni or cheese pizza from Little Caesars for $5
• Through June 26, Prime members who purchase a new car through Amazon Autos get a $1,500 Amazon gift card

Do you have to be an Amazon Prime member to shop?

Prime Day and all its amazing discounts are exclusively available to Prime members. However interested shoppers can grab a 30-day free trial to try Prime, and its many benefits with no strings attached, and gain access to exclusive deals and the convenience of fast, free shipping.

What are the best deals?

From reporting on Amazon sales for years, we can tell you for certain that Prime Day is the ideal time to stock up on beauty and skincare staples, score big-ticket tech for less, bestselling vacuums, and comb through the massive catalog of Amazon best-sellers. Plus, since this year’s sale runs before the Fourth of July Americana-themed deals and summer hosting essentials.

Is it worth it?

We certainly think so! Prime Day is a great chance to score deals on thousands of best-sellers, top tech and appliances and every day essentials. Our team diligently sorts through all the offers to find you only the very best items to grab on sale.

When is the next Prime Day?

Already wondering when Amazon’s next Prime Day is? We expect Amazon’s October Prime Big Deal Days sale event to return in fall 2026. Follow Post Wanted’s around-the-clock coverage, and you’ll be the first to know about headline-worthy sales. Click here to find all of the best deals.

This article was written by Miska Salemann, New York Post Commerce Writer/Reporter. As a health-forward member of Gen Z, Miska seeks out experts to weigh in on the benefits, safety and designs of both trending and tried-and-true fitness equipment, workout clothing, dietary supplements and more. Taking matters into her own hands, Miska intrepidly tests wellness products, ranging from Bryan Johnson’s Blueprint Longevity Mix to the viral Oura Ring to Jennifer Aniston’s favorite workout platform – often with her adorable toddler by her side. Before joining The Post, Miska covered lifestyle and consumer topics for the U.S. Sun and The Cannon Beach Gazette.