Ecoviva Mate 4 Countertop Reverse Osmosis Water Filter System with UV, BPA Free, 7-Stage Filter, Pure to Drain 3:1, Instant-Hot, Indoor No Installation, Meet NSF/ANSI 58 Desktop Water Purifier

Great water filter

Works well until it doesn’t!I bought mine exactly one year ago, it stopped working and it was time to change the filter, but I can’t replace it; bought two filter replacements and they don’t twist inside the filter compartment. The whole machine is now garbage!

I have owned several brands of countertop Reverse Osmosis machines over the last few years, but none has been as easy to use as this one. It was easy to bring online, meaning flushing the system 6-8 times before its first time use. Assembly was as straightforward as removing the packing tape, filling the reservoir with water, and plugging it in. It dispenses three different preset volumes of great tasting water. It also quickly dispenses 4 different temperatures of water to include room temperature, 115 degrees, 185 degrees, and 212 degrees. That functionality of providing different water temperatures is perfect for baby formula, coffee, tea, or oatmeal. The 6-stage filter with the UV light provide 7 stages of water purification. I also love that it is designed with a built In TDS Meter that is easy to read. Also with a 3:1 pure-to-drain ratio, it’s 1200% more efficient than traditional RO systems. There is only one filter to change and that can be accomplished in seconds and even provides a tool to use for removing and replacing the filter. It also indicates when the filter is reaching the end of its life which gives you a chance to order a new filter that is available on Amazon. The functionality, price point, filter availability, temperatures dispensed, pure to drain ratio, and great tasting water make this the best RO machine I have owned. I highly recommend it.

I love this reverse osmosis machine. My coffee in the morning comes out at the perfect temperature. It is nice to know that the water I am drinking is free from impurities. My only complaint was with customer service. I emailed them a question regarding an error code appearing on my machine a week or more ago. I never heard back from them. It would have been nice to put the error codes and how to fix them in the instructions.Update: Customer Support sent me an email with an answer to my question. They said they had sent me a response previously, but it somehow didn't reach me. Anyway, they have provided a solution to my issue.

This reverse osmosis system makes nasty tap water taste great! I really love the heated water feature for making tea. If you don’t want to spend a fortune for the whole under the sink set up this is perfect. I did have a little trouble with set up but soon realized I was just pushing the buttons too hard. Light touch is all you need. Great product!!

I love my Ecoviva water purifier! The water tastes clean and fresh, and the machine is very easy to use — no installation needed. It looks stylish on my counter and the hot water option is super convenient. Definitely worth it!

Very nice countertop filter machine for cold (normal Temp) and hot water filter water for tea and coffee. Good thing is worm water ready for baby food and formula. So far so good and water quality is cool with 11-18ppm. Nice development in the filtrations and material good quality. Design is also great and ease to use without any extra hassle and assembly. Ready to use from out of the box. In my opinion water flow should be little faster but overall I like the product!!

Wonderful counter top filter with hot water settings. The flow of water is slow that’s the only drawback but it’s a great water filter and value for money.

I purchased the Ecoviva MATE4 Countertop Reverse Osmosis Water Filter System in April 2025, and I couldn’t be happier with it. The water tastes clean and refreshing (I could not stand the taste of the water from our new LG fridge), the design is sleek, and I love the convenience of choosing different temperatures and water amounts at the touch of a button. On top of that, the customer service has been exceptional—highly professional and quick to resolve an issue I had with the filter. I had many questions regarding the device, and the company always responded within 12 hours at the latest. I would definitely recommend this product to anyone looking for a reliable and stylish countertop water filter system.