and MHU75NG heating units.FeaturesFor

combustible construction. They are intended for vertical ventilation only and are compatible with Mr. Heater’s MHU75LP and MHU75NG heating units.FeaturesFor horizontal venting only Compatible with Mr. Heater’s MHU75LP and MHU75NG heating unitsIncludes3 – 4 in. Adapter4 in. x 36 in. B-Vent Pipe(2) 4 in. x 24 in. Vent Pipe4 in. 90 Degree ElbowWall ThimbleRoof FlashingStorm CollarVent