2 in 1 functions: CO2 bubble counter and check valve, CO2 pipe fasten screw node provided to assure burst out of the CO2 Pipe.Spring type check valve is the best in preventing back flow.Acrylic material provides clear and easy bubble reading.Acid and break resistant.Easy disassembling of the cap in filling up water.
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2 in 1 functions: CO2 bubble counter and check valve, CO2 pipe fasten screw node provided to assure burst out of the CO2 Pipe.Spring type check valve is the best in preventing back flow.Acrylic material provides clear and easy bubble reading.Acid and break resistant.Easy disassembling of the cap in filling up water.