B & K 104-847HC Anti-Siphon Frost-Free Sillcock Valve 1/2 x 3/4 in MPT x Hose PTFE Softgoods
- Easy quarter-turn operation
- Ceramic cartridge design ensures long life
- Notched flange allows stable installation on siding
- Built-in back flow preventer checks siphoning back into the water supply
- Drains automatically upon water shut off