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Duststop 10 In. x 20 In. x 1 In. Standard MERV 4 Furnace Filter

Duststop

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Standard grade furnace filter with a filtering medium of continuous filament spun glass. Offers maximum airflow and alleviates strain on equipment. Filters pollen, pet dander, dust/lint, and dust mites. For peak equipment protection and energy efficiency, filters should be changed monthly in periods of high use.

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