The Sentinel CO2 Expansion Regulator works with their CO2-REG. When used together, more than 1 tank can be coupled together to extend the time between tank changes.
• Connect CO2-EXP to any 20 lb or 50 lb CO2 tank and to the CO2-REG
• Multiple tanks can be connected — there is no limit!
• 3-year manufacturer’s warranty
Instruction Manual – PDF format
The CO2-EXP comes ready to install. Connect it to the CO2-REG, connect your second tank, and you are ready to go!
The precision flow gauge on the CO2-REG releases between 1/2 to 15 SCFH (standard cubic feet per hour) of CO2 per hour from the connected tanks.