Aluminum 2 1/2" Female NH to 1 1/2" Male NH Storz Size_4" Rigid Storz Meets National Fire Equipment System Model:4023 (6.0 TPI x 3.187 OD) Couplings_Brass This is the same GBA15P

Meets National Fire Equipment System (NFES #2210)

WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm

of 1 1/2" or 1 3/4" hose

thread and couplings in use by fire departments today is double jacket hose with aluminum NH / NST

Collar screws take a 5/16 inch allen wrench

Aluminum 2 1 2" Female NH to 1 1 2" Male NH Storz Size_4" Rigid Storz Meets National Fire Equipment System Model:4023 (6.0 TPI x 3.187 OD) Couplings_Brass This is the same GBA15P Meets National Fire Equipment System (NFES #2210) WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm