iSpring RCS5T 500 GPD Residential and Light Commercial Tankless Reverse Osmosis Water Filter System with 1.5:1 Pure to Drain Ratio
About this item
- Designed to supply for large families, small restaurants and small businesses
- Produces up to 500 GPD or 0.34 gpm under ideal conditions. The actual output could vary from 70% to 90% of the 500GPD due to temperature, water chemical properties, and other factors. Filtered water output is about 40-70 psi on average.
- RO membrane with 1.5:1 pure to drain ratio
- 5 stages of filtration remove up to 99% of 1, 000+ pollutants including PFAS, chlorine, fluoride, lead and more.
- Light commercial capable - add a storage tank for light commercial settings
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iSpring RCS5T 500 GPD Residential and Light Commercial Tankless Reverse Osmosis Water Filter System with 1.5:1 Pure to Drain Ratio
$682.99
- Availability: In Stock
- Model: RCS5T
- Manufacturer: iSpring
Write Review

2018-03-16
18 Months later and we are still going strong. This system has been truly set it and forget it. My TDS is still in the teens, so I don't anticipate replacing the RO membrane until the 3 year mark at least. I'll never buy a big box water filtration system again!
UPDATE: For the price, this system should include a tank. I added a tank and it's worlds better now. Great water pressure on demand. Honestly, this system is probably overkill for a typical home. We may use a few gallons a day, if that, but we no longer suffer the annoyances of a lesser system. Previously, we had a WHER25 system. I added a manual pump, which was obnoxiously loud, to gain some pressure. If we filled one large pot with water, the tank was empty. We had to wait a half hour and endure the loud clicking noises to get more fresh water. No longer, must we suffer through. I expect many years of trouble free service. Also, iSpring has fantastic customer service. E-mailed them some questions, and they got right back with great answers to make things easier. The suggested putting the tank in the line BEFORE the last filter.
This system is fantastically engineered and a breeze to install. It fits perfectly under my sink and gets me less than 10ppm tds. My only complaint is the water pressure. It's fine for the most part, but having a tank would make this system perfect. I'll update again after I've used this a while. First impressions are spectacular.
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RCS5T Manual