About Products : Shurflo Beer Pump has been designed to accept pressurized beer and lagers, directly from the keg. It operates on either a supply of CO2, mixed gas, or from a clean dry source of compressed air. The pump will hold a pressure up to 85 psi (5.8 bar), enabling greater dispense distances and lifts to be achieved, while not affecting the carbonation levels of the product as intended by the brewer.