Dixon 150-F-BR Brass Boss-Lock Type F Cam and Groove Hose Fitting, 1-1/2" Plug x 1-1/2" NPT Male Cam and groove fitting with safety clips that lock into lugs for a secure connection One male groove adapter end for connecting to female cam couplers and one NPT female threaded end for connecting to an NPT male threaded connection (Type F) Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability