Grizzly G0440 Cyclone Dust Collector Bag material: Plastic Impeller size: 14-1/2-Inch steel riveted; Intake hole size: 7-Inch; Maximum static pressure : 10.4-Inch; Suction capacity: 13 Impeller size: 14-1/2-Inch steel riveted Intake hole size: 7-Inch Maximum static pressure : 10.4-Inch Suction capacity: 1354 CFM @ 2.5-Inch SP