Which brand has the largest assortment of 18x20 Air Filters at The Home Depot?

<a href = "https://www.homedepot.com/b/Heating-Venting-Cooling-Air-Filters/HDX/18x20/1/N-5yc1vZc4kwZ9tkZ1z18tw5Z1z19a36" class="u__default-link"> HDX</a> has the largest assortment of 18x20 Air Filters.

What's the cheapest option available within 18x20 Air Filters?

Check out our lowest priced option within 18x20 Air Filters, the <a href = "https://www.homedepot.com/p/HDX-18-in-x-20-in-x-1-in-Standard-Pleated-Air-Filter-FPR-5-HDX1P5-011820/314671397" class="u__default-link">18 in. x 20 in. x 1 in. Standard Pleated Air Filter FPR 5</a> by HDX.

What are the shipping options for 18x20 Air Filters?

All 18x20 Air Filters can be shipped to you at home.

What are some of the most reviewed products in 18x20 Air Filters?

Some of the most reviewed products in 18x20 Air Filters are the <a href = "https://www.homedepot.com/p/HDX-18-in-x-20-in-Premium-Pleated-Air-Filter-FPR-10-12-pack-CHDX1P10-011820/318542673" class="u__default-link">HDX 18 in. x 20 in. Premium Pleated Air Filter FPR 10, 12-pack</a> with 8,214 reviews, and the <a href = "https://www.homedepot.com/p/HDX-18-in-x-20-in-x-1-in-Superior-Pleated-Air-Filter-FPR-9-Case-of-12-C-HDX1P9-011820/318542712" class="u__default-link">HDX 18 in. x 20 in. x 1 in. Superior Pleated Air Filter FPR 9 (Case of 12)</a> with 8,214 reviews.

What's the difference between FPR and MERV?

Filter Performance Rating, or FPR, is a system developed specifically for The Home Depot and is similar to MERV, or Minimum Efficiency Rating Value. Within 18x20 Air Filters, MERV ratings include MERV 13, MERV 12, and MERV 11.

What depth options are available within 18x20 Air Filters?

Air filters come in various depth options. It's important to know what size you need in order for your air filter to function correctly. Within 18x20 Air Filters, depth options range from 1 to 2 inches.