The Campbell MFG Full Size Frost Proof Yard Hydrant utilizes high quality Cast Iron and head and handle. Below frost line sut off valve allows free flow of water at sub-freezing temperatures. Self draining bleeder valve with 3/4 inlet prevents riser pipe and head from freezing up. Solid brass extension rod through packing nut. Solid molded bucket hook for no hands fillup. Easy access above ground maintenance - no need to dig to replace parts as needed.