Arrowhead Brass 1/2 in. FIP X 3/4 in. MIP Anti-Siphon Brass Wall Hydrant

Integrated (Built-In) anti-siphon vacuum breaker technology. Exclusive “No-Leak�?O-Ring Bonnet (no packing nut to tighten). If backflow occurs, contaminated water evacuates out of weep hole in the stem. Noise-less operation and eliminates damaging water hammer. Eliminates the need for & cost of thread on vacuum breakers that restrict flow.