Suggested Retail: $54.75. Aerostar MERV 13 Pleated Air Filter 6 Pack 19 7/8" x 21 1/2" x 3/4". Aerostar's MERV 13 Pleated Air Filters are designed for superior filtration efficiency. Made with electrostatically charged synthetic material, these filters draw and capture allergens between 0.3 - 1.0 microns, including lint, dust mites, mold spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria. They can improve your HVAC unit's efficiency, reduce maintenance, and lower utility costs. It is recommended to change the filter every 60 to 90 days, or every 30 days during peak summer and winter months. This pack includes 6 filters. 21.5 x 19.88 x 0.75 IN. DIMENSIONS ARE ESTIMATED. Weight: 1.1 lbs. Brand: Aerostar. Model: 19 7/8 x 21 1/2x1 MERV 13. Num: 2P8HFCg8Y8n5SH9jeCusy3. Lot Sticker: OH001-00000325-05. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.