Aquanature Compact Single Gauge Co2 Regulator + Bubble Counter for Aquarium (Blue) Aquarium Tool
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Stable pressure design, Constant output pressure. Precise adjusting valve, easily to set 1 bubble for every 2-3 seconds. Bubble counter with check valve, using reinforced PC material, make it more safety and durable. Using PU washer, good sealing performance. gas serviceco2 maximum inlet Pressure1500PSI maximum output pressure1-45PSI inlet gauge2000PSI Inlet connection-W21.8