Zurn 1/2 in x 4 in. Anti-Siphon Frost-Proof Sillcock in Chrome

4 in. non-freeze, anti-siphon, automatic draining wall faucet comes complete with exterior chrome finish, brass casing, all bronze interior parts and an anti-siphon integral vacuum breaker. Automatic draining item. Has black knob.|Black knob|Automatic draining|Ideal for gas stations, convenience stores, strip malls, churches and other light commercial applications|Wall faucet|To assure drainage, turn faucet handle to close position and detach hose from pout during freezing weather, if hose is left attached, the frost-proof hydrant cannot drain properly and trapped water may freeze and damage the hydrant|Brass casing