Watts New Kwik-Change RO is the Best of the Best point of use RO systems on the market. Easy to change filters, high end lead free faucets, and Watts quality are some of the features. Reverse Osmosis Systems with Kwik-Change%u2122 Cartridges Watts new Kwik-Change%u2122 cartridges make cartridge and membrane replacement a snap. Available on a complete line of reverse osmosis drinking water systems and filtration units, Kwik-Change%u2122 cartridges connect and disconnect by a simple ¼-turn making cartridge changes quick, easy and more sanitary. Unlike conventional reverse osmosis units, filter housings are not required, so there%u2019s no mess or fuss during cartridge replacement. These systems are ideal for busy consumers that don%u2019t want to be bothered with complicated filter cartridge replacement procedures. Features Hinged bracket aids cartridge replacement. Cartridges and membranes are removed with a simple ¼-turn. Cartridges are attractively labeled Double O-ring design to prevent leaks. Hinge bracket and integrated shut off valve for easy cartridge replacement with just a simple ¼-turn. Cartridges shut off automatically. No sumps! No mess! No fuss! So simple, anyone can do it! Available in 50 GPD and 100 GPD Models.