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Amazon.com: Updated Soda Stream CO2 Cylinder Refill Adapter Hose Kit with Big Pressure Gauge, CGA320 to TR21-4 Soda Stream Quick Connect Adapter for CO2 Tank Soda Water Machine, 60in, 4500 PSI: Home
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What is the pressure of a full SodaStream CO2 canister (not the carbonated water, but the gas canister in the back - the pressure it's under before SodaStream regulates it down)? - Quora
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