Sure Flow Auto Anti-Siphon Valve, 1-In. Brand_Off! Ideal for medium to heavy-duty

Ideal for medium to heavy-duty loads

These neoprene rubber sealing washers measure 3/8" inner diameter x 7/8" outer diameter x 1/16" thick

No special tools

Features a jeweled pivot and luminous letters

Sure Flow Auto Anti-Siphon Valve, 1-In. Brand_Off! Ideal for medium to heavy-dutySure Flow Automatic 1" Anti Siphon Valve. Professional Grade Anti Siphon Valve with Flow Control. Its unique reverse flow design helps prevent flooding in the event of internal diaphragm failure, keeping the valve closed and saving water. Anti Siphon valves should always be installed at least 6 inches above the highest head on the valve line, and should never have another valve installed further down the line from the main valve. After installation