No Longer Avilable. Use Permatron F825-0630 alternative.
Prefilter for White-Rodgers ComfortPro Series. This is a high loft synthetic polyester filter in the color black. Measures 15¾ x 20 x ¼ inch.
The prefilter is located on the backside of the front air inlet grille. The prefilter is held in place by the prefilter frame.