Safety & No Leaks: FERRODAY CO2 keg pressure regulator features a heavy-duty forged brass body, well made connections, and exquisitely crafted pressure release valve to prevent any kind of gas leakage. Easy to Adjust by Hand: CO2 regulator has 2 control knobs, big adjustment knob enables more precise control even small adjustments, small shut-off knob allows instantly shut off without liquid backing up the gas line, easy to turn. Lock Ring to Hold PSI & Big Gauge Clear View: A lock ring under the big knob, so the knob can be firmly locked to hold your pressure setting. Two Big gauges always accurately show you the CO2 volume in the cylinder and the output pressure to keg. FERRODAY keg regulator has a clear view of pressure for a better homebrew experience. Pressure Release Valve & Filter: Safety first! A customized pressure release valve automatically releases pressures at about 50 psi for safety concerns. Also can be manually pulled out for pressure adjustment. A sintered metal filter in the stem keeps dirt out of the regulator.