Series PWDWUFKC3 Kwik-Change Ultra Filtration Membrane Water Filtration System dispenses a continuous supply of water. This series requires minimal maintenance and will provide years of clean, safe, great tasting water. It has a space saving design that installs under the sink or in limited space areas. This series has Kwik-Change cartridges, the fastest changeable cartridges on the market (30 second filter changeout process). 1/4-Pivot filter head makes for ease of accessibility and filter change, reduces the amount of tube connections for greater reliability and reduces leak potential. Cartridges connect to and disconnect from the unit by simple 1/4-turn. Other features include double seal O-ring cartridges that assure system integrity, and long reach faucet for easy fill. No storage tank is needed, and system requires only normal line pressure to operate.