Package of two F825-0337 prefilters for the White-Rodgers or Electro-Air SST and UST 1600 cfm, 20 x 21 air cleaners. These filters have an aluminum frame and a metal mesh filter. We measured them at a size of 10½ x 20¼ x 5/16". Please check your prefilter dimensions for accuracy.
Two of these prefilters are used in the SST1600, SST-16, UST, 16C26S-xxxx, 16C27S-xxxx, 16C28S-xxxx.
White-Rodgers packages have 1 prefilter per box. Our price is for a package of 2 prefilters.
These prefilters are genuine White-Rodgers. The metal mesh consists of layers of slit and expanded aluminum of differing densities.