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Filtrete Micro Allergen Reduction Filter, 16 in x 20 in x 1 in

Install Filter: 1. Remove plastic packaging and paper insert from filter, leaving cardboard frame intact. 2. Insert filter into the designated opening in your furnace or air conditioning system or wall/ceiling return with the arrow on the frame pointing toward the unit's blower motor (This is generally in the largest part of your HVAC unit). 3. For proper performance, change your air filter every three months. Start 90-Day Replacement Reminder: 1. Download Filtrete Smart App from your mobile devices app store. 2. Add a new filter and scan barcode (located on back of packaging). 3. Begin 90-day replacement reminder timer.