I took it purely for a try to decide whether I need it or not. The CO2 content in a 64 liter can increases according to the Nilpava kH+Ph test. Initially, the gas left the diffuser too quickly, as it turned out, the check valve poisoned. You have to pinch the hose after refueling. As a result, the thing is good, but, in my opinion, it is not enough for my 64 liters.
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