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12x - 13x Inch Air Filters

12 - 13 Inch High Air Filters

Air filters 12 inches tall12x_x_  inch and 13x_x_ air filters in various widths.  


Save with our Filter 6-packs. Most filters are bundled into 6-packs so the price you see is the price for all 6.
These filters have actual height measurements between 11.5"-12.75" on the smaller side.

We also have 12 and 13 inch square filters and other filter sizes.

Most replacement air filters are 1" deep, but we also offer air filters that are 2" deep, 4" deep for residential units and up to 6" thick for commercial a/c and furnace units.

Actual side dimension of a 12" filter is usually 11 1/2" or so, but they are referred to as 12" filters.

Air filter size 13x highSame goes for the 13" filters regarding the difference between stated size (nominal) as marked on the side of the filter and the actual filter dimension which is less.

Find the 12"x or 13"x  filter size stamped on the side of your old filter cartridge or measure the length and width of your existing filter.

Many of the 12" and 13" filters offered in this section have SAME DAY SHIPPING if ordered before 1pm EST with FREE FedEx ground shipping.

Most Popular and Best Selling 12" and 13" home air furnace filters and AC filters

11 1/2 x 11 1/2 x1 12x12x1 12x18x1
12x20x1 12x24x1 12x36x1
13x20x1 13 x 21 1/2 x 1 13x22x1

Available in MERV ratings of 6, 8, 11 and 13 in money-saving air filter 6-packs. The links above are for the most popular MERV 11 size.  Filters Outpost finds you the best, brand name filters at great online prices everyday.