Drum-Top Vacuum Head, Vacuum Power Source Pneumatic, Number of Power Heads 2, Vacuum Pickup Type Wet/Dry, Vacuum Filtration Type , For Drum Capacity 55 gal, Vacuum Air Flow 163 cfm, Static Pressure 163 in, Sound Level 102 dB, Vacuum Hose Dia. 2 in, Vacuum Hose Length 20 ft, Minimum Air Compressor 24 hp, Inlet Air Flow 110 cfm, Inlet Air Pressure 100 psi, Inlet Connection Gender Female, Air Inlet 3/4 in FNPT, Inlet Connection Type Threaded