Rain Bird ASVF PVC Anti-Siphon Valve 1 in. FIPT with Flow Control

Anti-siphon valve with flow control the industry leader for over 20 years. Rain Bird manufactures only the highest quality Anti-Siphon valves. Use Anti-Siphon valves in locations where the use of a pressure vacuum breaker (PVB) or a double-check valve is required by city codes to protect against back flow.