Durable Weep Action This Giant weep gun is a heavy-duty shut-off gun with a rear load design. It is made of sturdy materials to ensure long life, and provides steady weep action to keep your gun from freezing in cold weather. Simple installation and easy-to-use to facilitate a better car wash experience for your customers! This weep gun features an ergonomic handle and trigger that allows the user to work for extended periods of time. The safety lock prevents accidental opening of the valve. Brass fitting Stainless steel control bolt, cam, weep seat, and ball Plated steel inlet and discharge tube 4:1 burst ratio Maximum pressure: 5000 PSI Maximum flow: 10 GPM Maximum temperature: 300° F Rear inlet: 3/8″ FNPT Outlet: 1/4″ FNPT