Watts WP5-50 Premier 5-Stage Manifold Reverse Osmosis Water Filtration System REVERSE OSMOSIS WATER FILTER: Watts Premier WP5-50 Reverse Osmosis Filtration System is innovative in its one piece manifold design, thereby providing a seamless water path, effectively eliminating 17 different connections. WATER PURIFIER: It is a 5-stage reverse osmosis system that is certified to industry standard with the reduction of the claims specified on the performance data sheet COMPATIBLE WATER FILTER: The reverse osmosis water filtration system has 3-Gallon Storage Tank and 50 GPD Membrane. BEST WATER FILTER: It has Chrome Air-Gap Faucet and it adapts A-valve water shutoff valve and it reduces nitrate. MANIFOLD REVERSE OSMOSIS WATER PURIFIER: 5-stage manifold Watts premier reverse osmosis home water treatment systems offer a continuous supply of water for the whole family. It has1 Year of warranty.