Aerostar 16 3/8x21 1/2x1 MERV 11, Allergy Air Filter, Box of 6, 16 3/8x21 1/2x1 - Pay Less Super Markets
![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 13x21 1/2x1 MERV 8, Pleated Air Filter, 13 x 21 1/2 x 1, Box of 4, Made in The USA - Amazon.com](https://m.media-amazon.com/images/I/81ghs7PkACL.jpg)
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 20x20x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4") - Yahoo Shopping Aerostar 20x20x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4") - Yahoo Shopping](https://s.yimg.com/lo/api/res/1.2/FsSSuigqUCc0oHNgLZx2ZA--/YXBwaWQ9ZWNfaG9yaXpvbnRhbDtoPTQwMDtzcz0xO3c9NDAw/https://m.media-amazon.com/images/I/51fWtSLIb1L._SL500_.jpg)
Aerostar 20x20x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 1/2"x19 1/2"x3 3/4") - Yahoo Shopping
![Aerostar 19 7/8x21 1/2x1 MERV 13, Pleated Air Filter, 19 7/8 x 21 1/2 x 1, Box of 4, Made in the USA - Walmart.com Aerostar 19 7/8x21 1/2x1 MERV 13, Pleated Air Filter, 19 7/8 x 21 1/2 x 1, Box of 4, Made in the USA - Walmart.com](https://i5.walmartimages.com/seo/Aerostar-19-7-8x21-1-2x1-MERV-13-Pleated-Air-Filter-19-7-8-x-21-1-2-x-1-Box-of-4-Made-in-the-USA_c6153000-be7e-432b-b35b-2d015fced333.fc95cba13d51c0cb704136519c1b20a4.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Aerostar 19 7/8x21 1/2x1 MERV 13, Pleated Air Filter, 19 7/8 x 21 1/2 x 1, Box of 4, Made in the USA - Walmart.com
![Aerostar 20x25x1 MERV 11 Pleated, AC Furnace Air Filter, 6 Pack (Actual Size: 19 3/4"x 24 3/4" x 3/4"): Amazon.com: Tools & Home Improvement Aerostar 20x25x1 MERV 11 Pleated, AC Furnace Air Filter, 6 Pack (Actual Size: 19 3/4"x 24 3/4" x 3/4"): Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/81-+Rt2MlYL._AC_UF894,1000_QL80_.jpg)
Aerostar 20x25x1 MERV 11 Pleated, AC Furnace Air Filter, 6 Pack (Actual Size: 19 3/4"x 24 3/4" x 3/4"): Amazon.com: Tools & Home Improvement
![Aerostar 20x25x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6-Pack (Actual Size: 19 1/2"x24 1/2"x3 3/4"): Amazon.com: Tools & Home Improvement Aerostar 20x25x4 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6-Pack (Actual Size: 19 1/2"x24 1/2"x3 3/4"): Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/71h6qKoujhL._AC_UF894,1000_QL80_.jpg)