Dust Port Size (In.) 3 Filter Size (W x L x D) (In.) 19-3/8 x 25 x 1-25/32 Maximum CFM 490.0000 Motor Amps 15 Motor (HP) 3HP, 220V, 1Ph Motor Voltage (V.) 220 Overall Dimensions (L x W x H) (In.) 30-5/8 x 20-7/8 x 29 Sound Rating (Db.) 75 Style (Type) Dust Collector Weight (Lbs.) 212 Air Flow (CFM) (High) 957 @ 8″ Inlet 412 @ 3″ Inlet Filter Efficiency 85.4% @ 3micron to 10micron Electrics 3HP, 220V, 1Ph Filter Type Anti-Spark / Fireproof Gross Weight (Lbs) 251 Net Weight (Lbs.) 212 Number of Ports 3 Port Size (in.) (with Adaptor) 8/3