This cam-lock Type E is a hose barb connection. It is made of corrosion-resistant 316 stainless steel with a nitrile gasket which is impervious to extreme temperatures. The coupling size is 1 1/2 inches. The hose fitting size is 1 1/2 inches. The thread size is 1 1/2". Its maximum working pressure is 250 PSI at 70 Degrees F.