1/2" Female Iron Pipe Or 3/4" Male Iron Pipe x 6", Red Brass, Frost Free Hydrant, With Arrow Breaker, Lead Free, Integrated Vacuum Breaker, Twice The Flow Of Regular Vacuum Breakers, Less Noise, Heavy Duty Type Metal Handle With Stainless Steel Screws, O Ring Seal & No Leak 1 Piece Bonnet.