Carbon Steel 12" Flange with National Pipe Tapered (NPT) Pick One Side_4 inch 5" marine hose is coupled Model:3113 (7.5 TPI x 2.940 OD) Male Size_4 Inch Aluminum Female Garden Hose FABV1515

5" marine hose is coupled with brass NPSH threads

Fire hose reducer female adapters comes with a gasket

Complies with DIN standards which require that Storz heads must be forged when used in firefighting applications

Equivalent part number - FM3025F

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

Carbon Steel 12" Flange with National Pipe Tapered (NPT) Pick One Side_4 inch 5" marine hose is coupled Model:3113 (7.5 TPI x 2.940 OD) Male Size_4 Inch Aluminum Female Garden Hose FABV1515 5" marine hose is coupled with brass NPSH threads Fire hose reducer female adapters comes with a gasket