4" Carbon FiltersSizes fromHeat and Cool Warehouse
Furnace Filter Warehouse - Heat and Cool Warehouse has various sizes of 4" filters specifically designed to minimize unpleasant odors. The activated carbon used in the Carbotron Pleat has millions of tiny openings that absorb odoruos gas molecules from the air, so clean fresh smelling air remains . Click on the size that you are looking for and the types of filters available in your particular size will appear. Custom sizes are available upon request.

4" Filter Size4" Filter Size
Our intent is to provide you with exactly what you are looking for - please note that the size of the filter listed above isconsidered Nominal- and the exact size is less than that listed - exact size is listed under specification section of the product.