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![16 X 25 4" WIDE FILTER RACK [068] (HOLDS 1" WIDE FILTER) | American Metals Supply Co., Inc.](https://s3.amazonaws.com/innova-upload/HCP/542.jpg "16 X 25 4\" WIDE FILTER RACK [068] (HOLDS 1\" WIDE FILTER) | American Metals Supply Co., Inc.")
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What is a Furnace Filter Box? – Your Filter Connection
