Staff Answer
Oct 06, 2026 - 11:57 AM
Please note the psi reading is highly dependent on temperature, and is actually not dependent on how many tanks are attached (the pressure gets balanced between tanks when multiple are connected together). When attached to one or more completely full 20lb tanks, the CO2 pressure gauge should typically read around 800-1000 psi in many cases, lower if colder, higher if hotter. A freshly-filled tank may be much colder than the ambient temperature. Note that the gauge will have a fairly consistent level for most of the tanks' lifespan, and it will only begin to drop as all liquid CO2 has evaporated and only remaining gas is left. To check how much CO2 is left, weigh the tank and subtract the empty (tare) weight stamped on it.
Please let us know what other questions you might have.
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