Simmons Domestic 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. Tamper-proof lock can be locked in the closed position by inserting a padlock or bolt thru hole in link. Cast iron head and handle. Inlet 3/4 In. NPT National Pipe Thread . Casting 1 In. galvanized steel pipe. 7/16 In. galvanized pump rod. Overall length of hydrant is bury depth plus 24 In. Polyester powder coated finish. Made in USA. Not for use in California. Inlet Size 3/4 In. NPT, Outlet Size 3/4 In. GHT, Pipe Material Galvanized Steel, Casing 1 In.Galvanized steel pipe, Operating Rod 7/16 galvanized pump rod, Drain Hole 1/8 In. NPT, Bury Length 1 Ft., Overall Length 40 In., Head Material Cast Iron, Pkg Qty 1, Package Type Box