Brass 3" NPSH to 2 1/2" NPT Double Male (Hex) Couplings_Aluminum If you have two swivel

If you have two swivel female FDC brass connections that need plugs measure the INSIDE diameter of the swivel fitting

Meets National Fire Equipment System (NFES #2210)

0 inch NH / NST male hose coupling or fire hydrant is 3

economical general purpose booster hose (aka Red Line) is the traditional hard rubber hose

Brass 3" NPSH to 2 1/2" NPT Double Male (Hex) Couplings_Aluminum If you have two swivelMale to male adapters are used to bridge male to female hoses, pipes or valve fittings. Brass is commonly chosen for corrosion resistance, and is popular with chemical or salt water applications. Compatible part number DMH2530 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. Brass Male to Male Adapter