BASE WAVE 2 pcs of Needle valves with Bubble Counter Check valves + Metal tee for CO2 DIY…

Description

Package include : 2 pcs of needle valves + 2 pcs of bubble counter (with check valves function)+ 1 pc of metal teeRegulating,bubble counter,check valves 3 in 1 Good feeling and precision adjustment Applicable for CO2 special tube ( 4*6 mm ).There is a small seal ring in the bubble counter,please take it out and install on the regulator. Package include : 2 pcs of needle valves + 2 pcs of bubble counter (with check valves function)+ 1 pc of metal tee Regulating,bubble counter,check valves 3 in