Heavy duty, cast brass body and stainless steel parts are standard with all Symmons Scot Metering Faucet. Ideal for healthcare, institutional and public use applications. This 4 in. centerset mount brass metering bathroom faucet comes with a vandal resistant 0.5 gpm (1.9 L/min) aerator which limits water to a low flow rate of a maximum of 0.25 gallons per cycle (0.95 L/cyl). It features an adjustable flow time, with a maximum 30 second closing time and comes with a metal grid drain assembly.