... qualityPolypropylene (PP) quick release camlock couplingsTypeDescriptionSizeMaterialThreadA typemale adapter x female thread1/2" ~ 8"Polypropylene,Nylon ... Polypropylene,Nylon,Aluminum,Brass,Stainless steelBSPP,BSPT,NPTE typemale adapter x hose shank1/2" ~ 8"Polypropylene,Nylon ... ,Aluminum,Brass,Stainless steelBSPP,BSPT,NPTF typemale adapter x male thread1/2" ~ 8"Polypropylene,Nylon ...