Description
This filter box is designed to work in conjunction with DAKA furnaces that are equipped with twin/dual blowers. It covers both blowers and provides a place to attach a cold air return line. The back sheet metal panel provided is blank and ready to be cut to accommodate your size cold air return line. A minimum of a 10" round return line must be used.This model may be used on models 311/411/412/521/ 521FB/621/622 and many earlier Deluxe models.
NOTE: Filter Box uses one 14" x 25 x 1" fiberglass furnace filter (not included.). Purchase at your local hardware or home improvement store.