Mr. Heater F102848 4 Inch Vertical Vent Kit for Big Maxx MHU80LP and MHU80NG Unit Heaters,Gray
MHU80 and HSU80 model unit heaters. Designed for vertical installation only. Other select parts may be required for your installation needs. Please check and adhere to all state and local codes before installation. Includes (1) 3" to 4" adapter. (1) 4" x 36" B-vent pipe. (2) 4" x 24" vent pipe. (1) 4" 90 degree elbow, wall fire stop, roof flashing, storm collar, and vent cap
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