Iron 2 1/2" NH / NST Fire Hydrant Cap Threads_NH x NPT This product incorporates many ideas

This product incorporates many ideas given to us by our customers

Compatible part number - DFP25F25S

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

It's usually installed on the inlet side (Suction Side) of a water pump to keep it from losing it's prime during the off cycle

Mounting hardware included

Iron 2 1/2" NH / NST Fire Hydrant Cap Threads_NH x NPT This product incorporates many ideasHeavy 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.