AZTech Model M36X4-IAC Industrial Air Cleaner - 7500 CFM, 14 ga frame, 3/16" Black Matte Polyethylene Panels, 5 HP TEFC 230/460/3/60 Motor, Belt Drive Class 1 Framed Blower, 4-Way Exhaust Louvre, (2) 16 ga. Sealed Door, Adjustable Compression Hinges, Cam Door and Filter Latches. Includes: (4) 4" Pleated Pre-Filter (4) 95% Bag Filter