Taprite T752HP Two Product Dual Pressure Kegerator CO2 Regulator Large easy adjusting knob to increase or decrease delivery pressure Each regulator has a sentry shut-down safety built into the body that instantly protects the dispensing system in the unlikely event of regulator failure Outlet features shut-off with back flow check valve and 5/16" I.D. hose barb nipple Permanent quad-ring seal on inlet nipple helps eliminate leaks, no need to use a fiber washer each time tanks are changed Blow-off is factory set at 55-65 psig