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Save Up to 50% Off on PureDrop Father's Day Sale!
Save Up to 50% Off on PureDrop Father's Day Sale!

CUW4 Tankless 0.01μm Compact Under Sink Ultrafiltration Water Filter System | PureDrop

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Original price $152.99
Original price $152.99 - Original price $152.99
Original price $152.99
Current price $75.99
$75.99 - $75.99
Current price $75.99


● Removes up to 99% of pollutants; retains essential minerals in the water
● Faster flow (up to 0.5 GPM vs 0.3 GPM with traditional water filter systems)
● Hassle-free setup within 30 minutes
● Stylish tankless design with LED filter change indicator
● Compliant with industry standards, ensuring long-lasting performance
● Feel free to ask any questions; customer satisfaction is our priority

Customer Reviews

Based on 70 reviews
Matt Spry
Works great!!

I installed this in my 5th wheel camper as we live full time. Easy to install and works as advertised. That water tastes great. A couple months after I installed it I got a call from Don asking me how the install went and if I was happy with their product. Great customer service. I would highly recommend this unit for your drinking water.

David J
First purchase we made for our new 5th wheel travel trailer.

We purchased one of these units last spring for our travel trailer. We were tired of buying water bottles when we traveled, and wanted to have a better solution. The unit was a breeze to install, and wwe loved the taste of the water. We recently upgraded out travel trailer so that we can spend more time on the road. The same day we got home, I ordered the Pure Drop water filtration system. If you are looking for a simple to install, compact system, I highly recommend the CUW4.

The water tastes better than I thought it would!

I like the small size and the low price, it was easy to install and use. It takes a little time to fill containers but I just put a pitcher down and let it fill up, easy!

Gary Stone
This is just a filter, not RO

This is a great package. It supplied an endless amount of clean water. Be warned, this is not the same as reverse osmosis. You still have to deal with mineral deposits on a weekly basis.

Aaron K
Quick install, reasonably priced..

Took me about 25 minutes to install. I am familiar with basic plumbing so I always existing water supply valves before I start opening things up that won't fit back with out additional adapters. LCD didn't turn on.. called customer support, Nick was very helpful. Stayed on till LCD came on. ( hold both reset buttons for 10 seconds ).

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