FILTER 19.5"'x 19.5 " Lifetime Filter: All Filter sizes

19.5 " x 19.5 " Wall panel filters These filters fit into a wall panel; Click on the picture

which shows cardboard filters We also carry the cardboard

Used in many school districts including  C.P.S. School's


CONSTRUCTION: Frame shall be formed aluminum channel, securely connected with heavy rivets. Filter media shall consist of multiple layers of corrugated Aluminum, expanded through specified feeds to assure
maximum filtering and internal loading capabilities. Filters shall retain 571 grams of dust per 2.25 sq. feet of filter area. Resistance when clean is .077 w.g. at 350 FPM air velocity. MATERIAL: Filtering element shall be processed from Aluminum, no less than .025 in thickness expanded to .031 strand. Frame shall be made
from Aluminum, .040 thickness, joined with aluminum rivets. The maximum temperature range on the Smith Lifetime is 250 degrees. Drain holes properly located on 1” and 2” filters to allow for proper drainage.

These medium weight Aluminum filters
are precision-made and thoroughly tested,
exceeding the test requirements of
Federal Specifications ASTM F872.

All Smith Permanent stock sizes are 1/2” under
on width and height, 1/8” under in thickness.