13 x 21-1/2 x 1 Air Filters MERV 13 (6-Pack) by Tier1
Filtration Group 13x21_1_2x1_MERV_8 Aerostar 13x21 1/2x1 MERV 8, Pleated Air Filter, 13 x 21 1/2 x 1, Box of 4, Made in The USA
Filters Fast 12x22x1 Air Filter Merv 13, 1" AC Furnace Air Filters, Made in the USA, Actual Size: 11.75" x 21" x 0.75”, 6 Pack - Amazon.com
Merv 11 Pleated Air Filter - 13" x 21 1/2" x 1" – Any Kind Of Filter
Aerostar 19 7/8 x 21 1/2 x 1 MERV 13 Furnace Air Filter, 6 Pack 192212039944 | eBay
HDX 13 in. x 21.5 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-0014 - The Home Depot
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
Koch 13 x 21 1/2 x 1 MERV 8 Pleated Air Filter 12 Pack - Hepa Filter Sales - HepaFilterSales.com -- We Deliver Breathing Easier
13x21 1/2x1 Carbon Air Filter MERV 8 6-Pack | DiscountFilters.com
Dynamic C3P132112X 13 x 21 1/2 Air Filter
Aerostar 16 3/8x21 1/2x1 Merv 13, Health Air Filter, Box Of 6 : Target
Merv 8 Pleated Air Filter - 13 1/4" x 21 1/2" x 1" – Any Kind Of Filter
13 X 21 1/2 X 1 - Washable | Air Flow Designs
13x21 1/2x1 Carrier Replacement Filter by Aerostar – Air Filters Delivered
Aerostar 19 7/8 x 21 1/2 x 1 MERV 13 Furnace Air Filter, 6 Pack 192212039944 | eBay
HDX 21 in. x 21 in. x 1 in. Elite Allergen Pleated Air Filter FPR 12, MERV 13 61201.012121 - The Home Depot
Aerostar 13 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack - Walmart.com
Accumulair Pleated Air Filter, 13" x 21" x 1", 4 Pack FA13X21A_4 | Zoro
Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
13x21-1/2x1 Air Filter for Carrier/Bryant/Payne - Box of 4
13" x 21.5" x 1" MERV 8 Air Filters - $13.00 Each!
Merv 13 Pleated Air Filter - 13" x 21 1/2" x 1" – Any Kind Of Filter
Filterbuy 13x21.5x1 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement | Wayfair
21.5x23.5x1 Tier1 Air Filter Replacement MERV 13 - (6-Pack)
Filter King 13x21x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Actual Size 13 x 21 x .75" - Amazon.com
13x21.5x1 Tier1 Air Filter Replacement MERV 11 - (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
20" x 21" x 1" filter - MERV 13 - FST Filtration
13 X 21-1/2 X 1 Lifetime Air Filter - Electrostatic Washable Permanent A/C Furnace Air Filter. 65% More Efficiency - China Nylon Filter, Air Filter | Made-in-China.com
