PRM #2 Carbon Steel 4 Bag Multi-Filter Housing, 4 Inch Flange In/Out-150 psi Ag Tank They also feature brass cam

They also feature brass cam arms

The impeller blades passing the inlet port of the blower draw air or other gasses into the blower

70 X 48 X 20 with Back Plate

NEMA Premium Efficiency Design

Maximum Fluid Viscosity: 40

PRM #2 Carbon Steel 4 Bag Multi-Filter Housing, 4 Inch Flange In/Out-150 psi Ag Tank They also feature brass camPRM MULTI BAG FILTER HOUSING, CARBON STEEL 4 INCH INLET OUTLET Multi Bag Filter Housings for remediation and industrial filtration needs. Units come standard in carbon steel with Viton O Rings. Typical Features: Carbon Steel Construction (5MM), Epoxy Coated Interior Uses Trade Size # 2 Liquid Filter Bags 4 Bag Housing: 4 Flanged Inlet and Outlet Connections, 525 GPM Flow Rate Viton O rings standard 150 psi Maximum Working Pressure Stainless Steel