Thrift-Aire Filter
CONSTRUCTION: Frame shall be formed aluminum channel, mitered and secured at one corner by rivets. Filtering media shall consist of multiple layers of aluminum, expanded through specified feeds to assure maximum filtering and internal loading capabilities. Filters shall retain 290 grams of dust per 2.25 sq.
ft. (20x20 filter). Resistance when clean is 0.05 w.g. at 350 F.P.M. air velocity. Maximum resistance at capacity is 0.335 w.g.
MATERIAL: Filtering element shall be processed from sheet Aluminum,
commercially known as 3003-H22, .025 in thickness expanded with .020
strand. Frame shall be made from sheet Aluminum 3003-H14, .025 thickness.
The maximum temperature range on the Smith Thrift-Aire is 240 degrees F.
For use in heating, air conditioning
and make up air systems where a light
weight Aluminum filter is needed.
