Simmons Import Frost-Proof Yard Hydrant Bury hydrants have a 1-piece variable flow plunger, large cushion type seal not easily damaged. Positive shut-off even when foreign particles are present. Automatic drain feature. Plunger opens drain to prevent freezing and closes at any flow to prevent wasting water. Tamper-proof lock can be locked in closed position by inserting padlock or bolt thru hole in link. Overall length of hydrant is bury depth plus an additional 24 In. Inlet 3/4 In. NPT National Pipe Thread . Casing 1 In. galvanized steel pipe. Drain hole Tapped 1/8 In. NPT. Brass nozzle 3/4 In. MHT Male Hose Thread . Import. Not for use in California and Louisiana. Inlet Size 3/4 In. NPT, Outlet Size 3/4 In. MHT, Pipe Material Galvanized Steel, Casing 1 In. Galvanized steel pipe, Operating Rod 7/16 In. Galvanized Steel, Drain Hole 1/8 In. NPT, Bury Length 3 Ft., Overall Length 5 Ft., Head Material Cast Iron, Pkg Qty 1, Package Type Box