Aluminum 2 1/2" Female NH to 3" Male NH Male Size_4 Inch Hose must be unrolled before

Hose must be unrolled before water valve is opened

Carbon Steel 4" Raised Faced ANSI 150 Flange x 6" Storz

Carbon Steel 4" Raised Faced ANSI 150 Flange x 5" Storz

ASA Forged Flanges have raised shoulder with no raised face

Aluminum 2 1/2" Female NH to 3" Male NH Male Size_4 Inch Hose must be unrolled beforeNote 3 inch NH NST is very rare and is often confused with 2. 5 inch NH NST which is very common. If you have a fire department connection (FDC), hose coupling or an adapter check the female coupling for stamped numbers and letters. Most 3. 0 inch hoses use 2. 5 inch NH NST couplings. The most common fire fitting thread in the United States is 2 1 2 inch NH NST. If you have two swivel female FDC brass connections that need plugs measure the INSIDE