Fire Hose Washer (Up to 3" Hoses) Outlet Threads_GHT If you have any doubt

If you have any doubt it is best to contact your local fire department for size and thread type in your area

This Goodyear non-collapsible utility booster hose assures all around dependable service

Brass rack nipple (1 1/2" NPT Male x 1 1/2" NH / NST Male)

and is designed for chemical suits and wet and dry dive gear

Fire Hose Washer (Up to 3" Hoses) Outlet Threads_GHT If you have any doubtFire hose washer. For hose sizes up to 3 inches. Constructed of sturdy welded aluminum. Lightweight anodized 1 1 2 inch NH NST female swivel connection. Cleans all types of dirty and caked hoses. Connect to a fire hydrant or pumper with recommended operating PSI of 30 to 60.