18x20x4 Filters

Showing 1 -  2 of 2 Products
18x20x4 AIRx DUST Air Filter - MERV 8
$23.61 / Filter
$29.51 Save 20%!
6 Pack Selected
$141.64
Ships Free!
18x20x4 AIRx ALLERGY Air Filter - MERV 11
$25.21 / Filter
$31.51 Save 20%!
6 Pack Selected
$151.25
Ships Free!
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What Our Customers Have to Say

Gary W. 1 day ago
5
Based on what I know/don't know about filters.... They seem of good quality. Once fully removed, although dirty, they're still in good overall condition - "durable". The filters must be of good quality, or I wouldn't be continuing my order(s).
Rick B. 1 day ago
5
All good here
Mel B. 1 day ago
5
These filters are well made and sturdy. My size fits perfectly and are easy to install. They last!
Terri G. 2 days ago
5
too new to tell either way