Dixon G300-F-BR ASTMC 38000 Forged Brass Global Type F Cam and Groove Hose Fitting, 3" Plug x 3" NPT Male Straight body with two openings for connecting two hoses or pipes with cam and groove fittings or threads 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