Listed by Underwriters Laboratories (UL),Factory Mutual (FM) and USCG approved. Three Ansul dry chemical extinguishing agents available: PLUS-FIFTY® C,FORAY® or Purple-K. No pressure regulator required, reducing maintenance costs and producing smooth agent flow. Easy pressurization by turning the nitrogen cylinder hand valve. • Simple operation provided by discharge nozzle with two-position ball valve. Aluminum nozzle barrel provides a solid,round agent stream. Standard fill cap indicates when unit is pressurized. Options: long range nozzle, quick-opening nitrogen cylinder valve, wide wheels,rubber coated tire and 100 ft. (30 m) hose.