50GPD 5 stage domestic RO systems Type:Reverse osmosis Installation:Undersink,Countertop Best factory price,after-service. Detailed Features of this RO water system: Functions of our filter cartridges: 1)PP fiber cotton to remove sand,rust,suspended matters,and other particles. 2) KDF+CTO cartridge will remove heavey metals,chlorine,and adsorb bad smell odors and organics. 3) RO membrane ...