Sharkbite® Frost-Free Sillcock, Lead-Free Anti-Siphon, 1/2 x 3/4 in Nominal, Push-to-Connect x MHT End Style, 125 psi Pressure, 180 deg F, DZR Brass Body, DZR Brass Joint Sleeve/Stem Tube Trim, Polished Chrome, 4 in L Dimensions, Import
Protects the valve from freezing conditions and from potential back pressure and contaminated water flowing back into the main line.