... .npt,bsp coupler PP camlock coupling( cam and groove couplings) Advantages:1.lightweight,economicPolypropylene (PP) quick release camlock ... 8"Polypropylene,Nylon,Aluminum,Brass,Stainless steelBSPP,BSPT,NPTD typefemale coupler x female thread1/2" ~ 8"Polypropylene,Nylon,Aluminum ... Aluminum,Brass,Stainless steelBSPP,BSPT,NPTOther related product: Air hose fittings,Guillemin Coupling,EN14420-7 SS camlock ...