PORTLAND DESIGN WORKS BARKEEP INFLATORGET YOU AN INFLATOR THAT CAN DO BOTHCO2 inflators are wonderful and can quickly inflate a tube with ease. The only downside to many CO2 inflators is you are guessing how much pressure you're putting in your tires. The Portland Design Works BARkeep Inflator solves this issue by adding an integrated pressure gauge. It features Tap Handle technology that controls the CO2 flow while protecting your hand from a freezing cartridge. It is compatible with both Presta and Schrader valves so you can use it with all types of bikes. Features Integrated pressure gauge takes the guessing out of inflation Tap Handle technology controls CO2 flow while protecting your hand from cold cartridges Weight: 94g | Portland Design Works | Barkeep Inflator Co2 Inflator With Gauge