Iron 2 1/2" NH / NST Fire Hydrant Cap Threads_NH x NPT Carbon Steel 3" Flange x

Carbon Steel 3" Flange x 2 1/2" Male NH

The Safe Water Drinking Act section 1417 requires "Lead-Free" products to be a minimum of 99

NH or NST: National hose or national standard thread is often referred to as fire hose thread as this is by far the most common thread in use today by fire departments

The rubber lining is a single-ply extruded tube of synthetic EPDM compounded to resist ozone

Iron 2 1/2" NH / NST Fire Hydrant Cap Threads_NH x NPT Carbon Steel 3" Flange xHeavy duty 2 1 2 inch replacement iron fire hydrant cap with NH NST threads including chain. Pentagonal in shape. The most common size and threads for US fire hydrants is 2 1 2 inch NH NST.