13" x 21.25" x 1" MERV 8 Air Filters - $16.39 Each!
Aerostar 16 3/8x21 1/2x1 Merv 13, Health Air Filter, Box Of 4 : Target
21x21x1 Tier1 Air Filter Replacement MERV 13 - (6-Pack)
Aerostar 13x21 1/2x1 MERV 8, Pleated Air Filter, 13 x 21 1/2 x 1, Box of 4, Made in The USA - Amazon.com
Aerostar 13 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack - Walmart.com
Koch 13 x 21 1/2 x 1 MERV 8 Pleated Air Filter 12 Pack - Hepa Filter Sales - HepaFilterSales.com -- We Deliver Breathing Easier
Amazon.com: Pamlico Air 13 x 21-1/2 x 1 MERV 8 Pleated HVAC AC Furnace Air Filters. 6 Pack. (Exact Size: 13 x 21.5 x 0.75 Inches) : Tools & Home Improvement
13 x 21-1/2 x 1 Air Filters MERV 11 (6-Pack) by Tier1
HDX 21 in. x 21 in. x 1 in. Elite Allergen Pleated Air Filter FPR 12, MERV 13 61201.012121 - The Home Depot
Dynamic C3P132112X 13 x 21 1/2 Air Filter
13 X 21 1/2 X 1 - Washable | Air Flow Designs
13x21 1/2x1 Carbon Air Filter MERV 8 6-Pack | DiscountFilters.com
13x21.5x1 Odor Eliminator Air Filter - Only $15.67/ea.
13 x 21-1/2 x 1 Electrostatic Washable Permanent A/C Furnace Air Filter 13x21-1/2x1 - Amazon.com
Aerostar 13x21 1/2x1 MERV 8, Pleated Air Filter, 13 x 21 1/2 x 1, Box of 4, Made in The USA - Amazon.com
Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement | Wayfair
Filtrete 13.5-in W x 21.5-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
Filter King 13x21x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Actual Size 13 x 21 x .75" - Amazon.com
Merv 13 Pleated Air Filter - 13" x 21 1/2" x 1" – Any Kind Of Filter
HDX 13 in. x 21.5 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-0014 - The Home Depot
13 x 21-1/2 x 1 Air Filter Glasfloss ZL Series MERV 11 - Box of 12
