NORTECH N301BK Pneumatic Vacuum , Air Flow 89 cfm, std.. More details: Pneumatic Vacuum Head, Sludge, Static Water Lift 185 In., Air Flow 89 cfm, Minimum Air Compressor 15 HP, Air Requirements 68 cfm, Filter Type Standard, Cartridge Vacuum Filter, Vacuum Capacity 30 gal., Air Inlet 0.75 In., Tank Material Drum Sold Separately, Vacuum Hose Dia. 2 In., Vacuum Hose Length 20 ft., Horizontal Reach 20 ft., Sound Level dBA 102 dBA, Net Weight 55 lb., Includes Standard Cartridge Filter, 12 In. W Metal Wet/Dry Floor Tool with 4 ft. Steel Wand, 24 In. L Metal Crevice Tool