The Ultraflate Plus valve system features a front position trigger to actuate the reliable valve system built into the head. A brass outlet is installed and fits Schrader and Presta Tire valves. Various outlets are available that replace or supplement the stock outlet. A safety lock on the rear of the UF head prevents accidental discharge. The CO2 inflator uses our Patented 12g or 16g Cylinder MultiCup Cartridge Holder. Features a safety lock on the rear of the UF head to prevent accidental discharge.