U1 — The simplest, most effective water filter system.

Enjoy superior taste and purity 

Meet U1, RKIN’s newest creation, a sleek, zero-installation water filter that uses reverse osmosis to transform ordinary tap water into pure, healthy and delicious drinking water.

It has an advanced filtration system that’s made up of five stages to give you the purest, most delicious drinking water imaginable, unlike other water filter systems on the market. Plus, you can choose your water’s temperature (hot or cold!), thanks to the temperature control system!

Advanced filter system 💧

We want you to have the best quality water in your home…

That’s why U1 has an advanced filtration system with five stages. It removes up to 99% of all contaminants, including Fluoride, Chlorine, heavy metals like lead and more.

Reverse osmosis technology 🙌

The reverse osmosis technology is what sets U1 apart from other water filter systems!

It purifies the water by blocking virtually all harmful contaminants, and it’s the heart of the reverse osmosis system.

No installation needed ✅

U1 doesn’t require installation, so you can easily place it on your countertop—perfect for people who live in apartments, condos and RVs.

Plus, it’s simple to use—just fill the tank, and the filtration starts as soon as the full tank is placed in the system.

Customizable temperature 🧊🔥

Do you ever wish your water filter system had hot or cold water?

U1 has a customizable default water temperature setting so that your water is always set to the temperature of your liking.

Plus, there’s an instant hot water option that’s perfect for baby formula, tea, instant coffee, and more!

1-year money-back guarantee 💰

With a purchase of U1, you get an unconditional 1-year money-back guarantee. Please view our website for more information.