For 2 Chamber Cartridges of 390 ml (13.2 Oz) chemical content. The fischer pneumatic dispenser FIS AP with compressed air drive is suitable for quick, fatigue-free dispensing of fischer injection cartridges up to 390 ml. It is especially recommended for work on rebar connections. The cartridges are placed into the dispenser that is connected to the air compressor and are dispensed through the actuation of the handle.