Homewerks VFF-ASP-G19PA Anti-Siphon Frost Free Sillcock, 3/4-Inch Male Thread and 1/2-Inch Female Thread, 3/4-Inch by 12-Inch 3/4-Inch hose thread outlet Brass body construction With integral vacuum breaker Meets ASSE 1019-A Meets ASME A112.18.1/CSA B125 Standards