iSpring RO500AK-BN, NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow with Natural pH Alkaline Remineralization, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio

Purchased this setup last year and it has been working flawlessly. Recently replaced all three of the filters, and suddenly had water leaking out the front of the machine. Contacted Sean and he worked with me to quickly send out new filters, which resolved the issue - it was a leaking RO filter. I appreciated how fast he responded and got the product sent out for me to get this fix. Thank you!

Yet again I am so impressed with this company. Sean is responsive and helpful. We love our unit and I just wanted to make sure I was changing the filter correctly. He walked me through the process (which is actually quite simple) and responded in a timely manner. He then followed up to make sure everything was running smoothly and correctly.

We bought iSpring RO500AK-BN NSF in December 2025. We are very happy with the quality of product and water. We have saved some money on our drinking water cost since the day we bought it. Sean has been great in responding to our free extended warranty.

[This review was collected as part of a promotion.] I used the seven stage system for years and I have always loved iSpring but I was extremely happy to find iSpring had a tankless RO system. It is incredibly easy to hook up and to maintain. It's my favorite by far! And I feel confident knowing @Nick at iSpring is there to help if I have any questions or concerns!

Sean was very helpful throughout the whole process of us getting a new unit..he was very clear about the whole process,,thank you very much Sean for the help.. very much appreciated...

The water tastes very good better than the bottled water! The service was very nice to addressing the problem on my problem.

Nick was great and helped me out!

Bought the RO500, after reviewing many Ro filters. There's plenty in the market most of them dont have NSF certification. Been using the filter for 6 months now, very satisfied.

MICHELLE AND SEAN BOTH HELPED IMMENSELY I COULD NOT HAVE FIXED THE ISSUE WITHOUT THEIR INPUT. I HAVE THE 6 STAGE R/O SYSTEM. THIS TIME WITH THEIR HELP I WAS ABLE TO CHANGE FILTERS WITHOUT USING A BUCKET OR TOWELS.

I bought my RO500AK and I LOVE IT! I live in the country and have well water that stinks and has high levels of arsenic! The water no longer stinks and tastes awesome! It should also be noted that I also hooked up my RO500AK to my LG Refrigerator (Ice Maker) and it all works flawlessly!!! Thank you so much for engineering and building a beautiful piece of much needed equipment (RO500AK)! A Customer for Life! Thank You!