Orbit For 3/4 in. Tubing Anti-Siphon Valve 1.5 in. H 1 pk

Universal, Hose Bib Anti-Siphon Valve, helps prevent the backflow of contaminants from the garden hose entering the home water supply, fits standard outdoor hose faucets, 3/4 in. Female inlet x male hose thread outlet, prevents outside water from siphoning, through an outside faucet and contaminating the drinking water.