18x24x4 Filters

Showing 1 -  3 of 3 Products
18x24x4 AIRx DUST Air Filter - MERV 8
$16.53 / Filter
$20.67 Save 20%!
6 Pack Selected
$99.19
Ships Free!
18x24x4 AIRx ALLERGY Air Filter - MERV 11
$18.64 / Filter
$23.30 Save 20%!
6 Pack Selected
$111.84
Ships Free!
18x24x4 AIRx HEALTH Air Filter - MERV 13
$28.31 / Filter
$35.39 Save 20%!
6 Pack Selected
$169.88
Ships Free!
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What Our Customers Have to Say

Bruce J. 2 days ago
5
Been using Discount Filters for a couple of years now. I need the allergy Filters for my condo. They work every bit as well as the brand name Filters without the higher cost. Recommended.
Ronald R. 2 days ago
5
Product performs as expected. Good price /value.
Charles 3 days ago
5
Fast delivery Great price Quality product Usage product for several years
Gail M. 3 days ago
5
Based on my home air quality sensors it appears that these filters do a good job in helping to cleani the air. When replaced after 6 months they show significant dust and dirt that were removed from the air. I think they are a good value for the money.