. Used when unit is placed outside of the conditioned space.18" Return Air Kit for KIB6021-2, KIB6023-2, and KIB6043-2 Includes return air door with 18" flange.
FeaturesMade from the highest quality materialsDesigned for durability with comfort.RV Air AC135G OEM Filter for Air Conditioner We provide one stop shop for the perfect auto accessories for the vehicle.