--- title: "Waterdrop Is Clearing Out Its Prime Day Deals—Save Up to $400 on Reverse Osmosis Systems" description: "Waterdrop is clearing out popular reverse osmosis water systems for Prime Day. Save up to $300 on top models." date: "2026-06-23" modified: "2026-06-23" authors: - name: "Glenda Taylor" job_title: "Staff Writer" link: "https://www.bobvila.com/authors/glenda-taylor/" url: "https://www.bobvila.com/reviews/waterdrop-prime-day-june-2026/" categories: - "Appliances" - "Appliances & Cookware" - "Deals" - "Interior" - "Kitchen & Dining" - "Reviews" tags: - "deals" - "PD2026" --- # Waterdrop Is Clearing Out Its Prime Day Deals—Save Up to $400 on Reverse Osmosis Systems ![Waterdrop Is Clearing Out Its Prime Day Deals—Save Up to $400 on Reverse Osmosis Systems]() *Photo: BobVila.com Team* Waterdrop’s Prime Day deals are a good time to invest in a reverse osmosis system that will improve drinking water without taking up a lot of space. Our favorite deal is the [Waterdrop M6H Instant Hot Countertop Reverse Osmosis System for $299]() (was $429. We personally tested this model and were seriously impressed by how convenient it made filtered water for coffee, tea, cooking, and everyday drinking. [See the full M6H review here](). This [Prime Day]() event includes deals on both [Waterdrop’s ]()site and [Amazon](), with savings on countertop RO systems, under-sink reverse osmosis systems, alkaline mineral filtration, and direct-connect under-sink filters. Whether you want a no-install countertop system or a higher-capacity under-sink model for the whole household, you’ll find a great deal here. ## Our Favorite Waterdrop Deals The Waterdrop M6H combines [reverse osmosis filtration]() with instant hot water in a countertop design that does not require under-sink installation. It’s especially useful for filtered drinking water, tea, coffee, and quick hot-water tasks in the kitchen. The Waterdrop X12 is the biggest dollar-off deal in this group, taking $400 off a premium [under-sink reverse osmosis system](). It’s a strong pick for households that want a high-capacity RO setup with alkaline mineral filtration built into the system. The Waterdrop G3P800 is marked down by $300 for Prime Day, making it one of the strongest [under-sink RO deals]() in the lineup. It is a good fit for shoppers who want a tankless reverse ## All Waterdrop Prime Day Deals to Shop on Amazon and Waterdrop Waterdrop is offering Prime Day savings through both its own site and Amazon, so these five filtration deals include both shopping links for easy price-checking before you buy. - Waterdrop M6H Countertop RO System for $299 (was $429) —[ Waterdrop]() |[ Amazon]() - Waterdrop X12 Under-Sink RO System for $899 (was $1,299) —[ Waterdrop]() |[ Amazon]() - Waterdrop G3P800 RO System for $699 (was $999) —[ Waterdrop]() |[ Amazon]() - Waterdrop G5P700A Alkaline RO System for $279.99 (was $359.99) —[ Waterdrop]() |[ Amazon]() - Waterdrop TSA Under-Sink Water Filter for $90.99 (was $139.99) —[ Waterdrop]() |[ Amazon]() ## Author Glenda Taylor is a BobVila.com staff writer with a background in the residential remodeling, home building, and home improvement industries. She started writing for BobVila.com in 2016 and covers a range of topics, including construction methods, code compliance, tool use, and the latest news in the housing and real estate industries.