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

2021-01-26
This is my third filter system from iSpring. The first two used tanks and this is my first tankless. Experienced some leaking from the RO canister while the booster pump ran. Adam in customer service helped me and not only sent some extra O rings but an entire RO canister.
And I really appreciate that. Because he could have sent just the end cap but instead wanted to make sure whatever the problem was, it was 100% solved the first time.
My original end cap must have had some minor deviation. Once I put in the new O ring and end cap, not a single drop has leaked. Literally I flushed the system and started using it. I don't have strong water pressure where I am, but the flow is fine for what I need. A family may still want a small tank to ensure a *very* high flow.
The system is great and exactly what I have come to expect from iSpring. They give you a completely assembled unit and all you have to do is insert the RO membrane. Could you build your own? Sure. If you knew all the right parts and wanted to spend the time. Or you could just buy it from iSpring and have it completely assembled and shipped to your door. And they're in Georgia so you get timely support and they can ship parts fast.
I won't buy from anyone else.
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RCS5T Manual