For controlling the flow of water while also protecting a culinary water system Combines a 24 VAC automatic valve with an atmospheric vacuum breaker; Valve features a 24 VAC solenoid, manual actuation lever, and flow control Atmospheric vacuum breaker features a reliable poppet and seal design Internal scrubber filter helps keep the valve clog-free from dirty water Compatible with controllers from Orbit, Hydro-Rain, and other major brands Durable, noncorrosive plastic construction. Prevents contaminates from entering household water supply. Adjustable flow control stem. Unique balanced diaphragm design. Safe, low voltage solenoid. Internal bleed for manual operation. Sealed solenoid with low power consumption. Body and lid are molded with heavy-duty (pipe fitting grade) ultra violet-protected PVC (polyvinyl chloride) that meets NSF 14 standards. Molded thermoplastic elastomer diaphragm (NSF) 61 listed. For outdoor use with cold water only.