Fire Hose Adapter, Fitting Connection Type NPT x NPT, Fitting Gender Female x Male, Fitting Material Aluminum x Aluminum, Fitting Movement Rigid, Fitting Shape Straight, Fitting Size 2 1/2 in x 3 in, Tightening Method Pin Lug, Compatible Pipe Size 2 1/2 in, Hose Fitting A Connection Type NPT, Hose Fitting A Gender Female, Hose Fitting A Size 2 1/2 in, Hose Fitting B Connection Type NPT, Hose Fitting B Gender Male, Hose Fitting B Size 3 in, Thread Type NPT x NPT