This dual gauge regulator is a high performance Taprite regulator with 0-50 PSI range, 60lb & 2000lb gauges, tank fitting, high performance 5/16 inch barb with duck-bill shutoff and check valve, and a red easy adjustment cap. Robust design delivers performance and reliability. Extremely durable and user friendly polycarbonate bonnets make adjustments a snap! Pull cap to adjust the pressure and push back to lock it in. High CO2 volumetric flow provides continuity in product dispensing. This primary regulator connects directly to its gas source so its ready to rock! Recommended operating pressure should be limited to 2/3 of the gauge range for maximum accuracy. UL approved per UL252 class IV rating for CO2. Polycarbonate bonnet will not chip, break or fade. 10 Micron filter built in to keep contaminants out of regulator.