If you have ever dispensed more than half a tube of mastic around windows or frames you will appreciate the simplicity and convenience of this very simple gun. At the touch of the trigger air pressure is applied to the back of the cartridge and out comes a very even flow of material. Be warned, however, that if the pressure is too high it tends to come out rather quickly! Suitable for use with virtually any small compressor fitted with a reservoir. Saves a lot af arm ache! The tool is supplied with a 1/4" BSP bayonet connector. Please refer to the Airline Fittings section for details of suitable airlines and fittings.