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

2020-11-11
I purchased this system for ultra pure water for my 90gal fish tank with weekly 50% water changes and did not have anywhere to store 40+gal through the week as other RO systems take many hours to filter this much water. This system works perfectly, down to 6-8 ppm of TDS and fills my 40gal in about an hour and a half. 10x faster than most RO systems. Also, it fits easily under my wet bar and I plumbed it with the included faucet so we can drink the same whenever we want. I don't need a reservoir for my fish tank needs, but it would probably be better (faster) for the drinking water when using the faucet. The first few seconds of running, the system is passive, using the water pressure from you pipe, but the pump kicks on after a few minutes and powers the system. The flow rate is significantly increased and the TDS drop quickly after the pump kicks on. Testing the water coming from the system, the TDS drop quickly from >100 ppm to <10 ppm in the first minute or less of filtering (my tap is >400 ppm). Also a shout out to Don with their customer service for his personalized assistance and follow up with my unique needs. Thanks, Don!
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RCS5T Manual