Prefilter for the White-Rodgers Electro-Air Super Slim Series 20 x 20 air cleaners. These filters have a flat aluminum frame with an aluminum mesh filter. Measured size of 19-3/4 x 17-1/4 x 1/8. Please measure your prefilter dimensions for accuracy.
One prefilter slides into the cell assembly in the model SS2020 or 14C11Y-410. These prefilters are genuine White-Rodgers.