Furnace Filter Base (Gas Furnaces)

Part No. GFFB

For use with upflow or horizontal gas furnaces. No furnace panel or door to remove; lift access door features built-in handle, magnet, gasket, and reinforcing bead to ensure closure. Uses standard size filters (filters not included). Available in 3″, 4″, or 6″ high.

14 x 25 
16 x 25 
20 x 25 
24 x 24