4" NPSH Male x 4.5" NPSH Male Adapter Aluminum HA15T25T Service Pressure 400 PSI Test 3-1/2" Inch NH (NST)

4" NPSH Male x 4.5" NPSH Male Adapter Aluminum HA15T25T Service Pressure 400 PSI Test 3 1 2" Inch NH (NST) Service Pressure 400 PSI Test Pressure 800 PSI Burst Pressure 1200 PSI Coupling Side 1 2 1 2" NST Female Swivel Coupling Side 2 2 1 2" NST Male Rigid Coupling Material T 6061 Anodized Aluminum Inside Diameter 2 1 2" Lay Flat Width Approximately 4 1 2" Available Length 20 Feet Double jacket fire hoses are kept on hand in almost every municipal fire department with a socket at one or both ends that allows two pipes or tubes to be joined Alternatively if a short length of pipe with two female National pipe threads (NPT) (in North American terms