Use this Lawn Genie 150 psi Anti-Siphon Valve with Flow Control to help prevent irrigation water contaminants from entering the drinking water supply. This anti-siphon valve features a jar-top bonnet for quick diaphragm repair access, internal and external bleed, as well as flow control. Constructed from corrosion- and UV-resistant material with a stainless-steel metering pin, this valve is built for durability and longevity.