Fire Hose Coupling Set 1 1/2" NH / NST Pick One Side_4 1/2 Inch NH or NST: National hose

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

These 4 inch storz replacement couplings come complete with hose shank

and 6 inch

The Pack completely unfolds for access and storage

Equivalent part number - SM25F20T

Fire Hose Coupling Set 1 1/2" NH / NST Pick One Side_4 1/2 Inch NH or NST: National hoseComplete female to male coupling set. WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling.