Fisnar 560548U-12N Nylon Manual Barrel Loader fills a barrel directly from a 12 oz cartridge. A connected air regulator is set to a pressure suitable for the material not exceeding 65 psi (4.48 bar). A manual switch on the base actuates the air supply and pressurizes the cartridge to fill the syringe barrel. Syringe barrel and piston sold separately. For use with Techcon, Semco, and EFD-style 12 oz cartridges (not included, sold separately).