Anti-Siphon Valve

Anti-Siphon Valve for bleeding air from irrigation supply tube to prevent a siphoning effect after the drip system turns off. Best positioned at top of the waterbutt, connected to a Tee Piece.

Universal Valve Co. Model 403 - Anti-Syphon Valve, AST Valves, 403

Watts Anti-Siphon Valve Repair Kit RK 188/288/388-T 3/4-1 - The Home Depot

Rain Bird Anti-Siphon Valve

The Anti-Siphon Valve, a Breakthrough in Oil System Fire Safety, Has Been Protecting Fuel Oil Handling Facilities for a Century

How to Fix Anti Siphon Valve on Faucet

1 (2.5 cm) Jar Top Anti-siphon Valve (53764)

Champion CL466 Series Automatic Anti-Siphon Valves provide back-flow protection to protect your water supply and automatic operation with connection

Champion Anti-Siphon Valve 3/4 in. 150 psi

Used to prevent marine fuel tanks from siphoning if a hose were to leak or break.

Aluminum Anti-Siphon Valve 1/4

Anti-Siphon Valve

Automatic Anti-Siphon Valves – OrbitOnline

Anti-Siphon Valves Preferred Utilities Mfg