Safety retrofit kit for Multi-Flow series 210 blowgun, pipe 90 mm and black silencer nozzle, not removable, must be firmly connected with high-strength thread lock, max. operating pressure 16 bar, volume 84.2 dB(A), 407 lmin pure flow rate, 558 lmin including injector effect (additional air is drawn in through the injector nozzle, which increases the liter output)