Dual Gauge CO2 RegulatorThis high quality dual gauge CO2 regulator provides consistent carbonation for force carbonating or serving homebrew from your kegerator with the ideal heady foam and fizz. Its primary gauge delivers constant CO2 readouts, while a second gauge monitors remaining CO2 left in your cylinder ensuring you'll never run out unexpectedly. Pressure adjustment requires a flathead screwdriver. The low pressure gauge mounted on top (12 olock position) reads from