System certified with NSF/ANSI Std. 42 & 53
Under-the-sink Installation; 3M™ Individual Drinking Faucet ID3_GA is approved by the General Acceptance (GA) system of the Water Supplies Department (WSD) that products have been tested to prove conformity to the statutory standards which could ensure drinking water safety.
Change the cartridge when the water flow becomes slow. Cartridge life varies by water consumption and water quality but the maximum life is 12 months only.