1" Auto Antisiphon Vavle

Prevents contaminates from entering household water supply. Flow control adjustment reduces sprinkler fogging and overspray. Internal bleed lever for testing and flushing sprinkler lines. Works with industry standard 24 Volt sprinkler systems. Heavy-dutyconstruction and UV-resistant to provide years of reliable service. Listed by International Association of Plumbing Mechanicals Office - IAPMO (UPC).