iSpring RO500-ORB Under-Sink Reverse Osmosis System
NSF 58 certified RO system with 500 GPD capacity and 2:1 pure-to-drain ratio. 3-stage filtration plus advanced membrane for reduced contaminants and improved taste. Customers cite easy installation and great-tasting water, with some notes on flow variability
Highlights
- high-efficiency waste ratio
- multi-stage filtration for taste
- NSF 58 certified
Pros
- NSF 58 certified filtration
- 3-stage filtration with carbon and membrane
- 2:1 pure-to-drain ratio reduces wastewater
- easy filter replacement
Cons
- some customers report lower-than-expected flow
- occasional unit stopping after months
Best For
Features
- NSF 58 certified with 2:1 pure to drain ratio for reduced wastewater
- 3-stage filtration: sediment and carbon block plus RO membrane
- removes up to 99% of contaminants including lead (98%), chlorine, fluoride, arsenic
