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18x36x1 Furnace and AC Filters

9 products

Showing 1 - 9 of 9 products
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18x36x1 EZ Flow Filters
18x36x1 EZ Flow II Filters 10055.011836 (12 Filters)
$ 82.99
Flanders AAF Basic Filter 18x36x1 Heavy Duty Filters 10255.011836 (12 Filters)
18x36x1 Heavy Duty Filters 10255.011836 (12 Filters)
$ 85.99
18x36x1 NaturalAire Standard MERV 8 Filters (12 pack)
18x36x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 150.99
18x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
18x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 149.99
18x36x1 Exact Pleated MERV 8 Filters (12 pack)
18x36x1 Exact Filters Pleated MERV 8 (12 pack)
$ 285.99
18x36x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
18x36x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
$ 242.99
18x36x1 Exact Pleated MERV 13 Filters (12 pack)
18x36x1 Exact Filters Pleated MERV 13 (12 pack)
$ 333.99
18x36x1 Exact Pleated MERV 11 Filters (12 pack)
18x36x1 Exact Filters Pleated MERV 11 (12 pack)
$ 309.99
18x36x1 Exact Filters Basic MERV 4 (12 pack)
18x36x1 Exact Filters Basic MERV 4 (12 pack)
$ 257.99

TIPS TO SEARCH FOR YOUR FILTER SIZE

When using our search option to locate your filter size especially for Exact FiltersĀ® enter the exact size needed in the format shown here.

Example: 21-1/8x32-1/2x1
No spaces, fractions only 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8.

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SAVE 20% ON SINGLE FILTERS WITH AUTO DELIVERY!

Don't need a whole case of filters? We sell individual filters for our customers that don't want a case of replacements. If you choose auto-delivery you will save an extra 20%!

SHOP SINGLE FILTERS