Aluminum 1" NPSH Female Quarter Turn Forestry Adapter Female Size_5 Inch Fits pentagon fire hydrant heads Model:3112 (7.5 TPI x 2.940 OD) Female Size_4 Inch DA30M20MN 2 inch NH NST

Fits pentagon fire hydrant heads up to 1 3/4 inch and square fire hydrant heads and up to 1 1/4 inch

NH / NST is the most common thread in the fire service

If possible it is best to measure the MALE fitting

Aluminum Female to Male Adapter

1 1/2 inch all polyester single jacket fire hose specifically designed for interior fire fighting use

Aluminum 1" NPSH Female Quarter Turn Forestry Adapter Female Size_5 Inch Fits pentagon fire hydrant heads Model:3112 (7.5 TPI x 2.940 OD) Female Size_4 Inch DA30M20MN 2 inch NH NST Fits pentagon fire hydrant heads up to 1 3 4 inch and square fire hydrant heads and up to 1 1 4 inch NH NST is the most common thread in the fire service