Repair leaks on a wide range of faucets with this plastic cartridge from Master Plumber. It replaces the Emco OEM part number 3103/51-197269 and is compatible with certain Emco, Danfoss, Waltec and Delta brand items. Faucet cartridge replacement is a simple repair that most do-it-yourselfers can perform using standard hand tools. The pressure of the Emco Equitemp mixer is balanced. The flow of hot and cold water automatically adjusts to avoid temperature fluctuations caused by changes in the pressure of the building’s plumbing system. This 3 1/2-inch Emco mixer tap consists of a plastic coating and a corrosion-resistant flap and delivers smooth manual operation.