Unit with electronic speed control adds heating or cooling to any room quickly, easily, and inexpensively. Recommended for porch, trailer, attic, cellar, second floor, with wood or coal stoves or furnaces. Complete with registers and cut-off damper. Wall Size Through floors or walls 6″ to 12″ thick. Volts 110V Weight 4 lb

Unit with electronic speed control adds heating or cooling to any room quickly, easily, and inexpensively. Recommended in n adjoining rooms for cooling or heating. Complete with registers. Wall Size Through walls 5″ to 6″ thick (2×4 or 2×6) Volts 110V Weight 4 lb

Connector reduces 9000 Duct Fan from 6″ diameter down to 4″. Weight 4 lb