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UNIT SIZE: 36W
(12) 20" X 25" FILTER
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UNIT SIZE: 40W
(13) 20"X25" FILTER
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UNIT SIZE: 50W
(15) 20"X25" FILTER
Shaded area represents filter section blankoff.
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Fig. 206 — Flat Filter Arrangement — 2-in. or 4-in. (cont)
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