Skip to content
19+ Years of Commercial HVAC & Residential Solutions
19+ Years of Commercial & Residential Solutions
My Account Order Lookup Filter Fit Guarantee™

18x18x1 HVAC, Furnace, AC and Heat Pump Filters

Enhance your HVAC system with the best 18x18x1 furnace and AC filters. Our collection features top brands known for their quality and performance, ensuring your air remains clean and your system efficient. Choose our 18x18x1 filters for reliable filtration.

Filters

$
$
18x18x1 NaturalAire Microparticle MERV 10 Filters (12 pack)

18x18x1 NaturalAire Microparticle MERV 10 Filters 85156.011818 (12 pack)

$ 229.99 - $ 229.99
$ 229.99
$ 229.99 - $ 229.99
$ 229.99

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

View full details
$ 229.99 - $ 229.99
$ 229.99
$ 229.99 - $ 229.99
$ 229.99

18x18x1 Exact Filters Basic (12 pack)

$ 174.99 - $ 174.99
$ 174.99
$ 174.99 - $ 174.99
$ 174.99

18 x 18 x 1 basic filters in the the exact size of 18 x 18 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leading man...

View full details
$ 174.99 - $ 174.99
$ 174.99
$ 174.99 - $ 174.99
$ 174.99

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare