Skip to content
Quality HVAC Filters for Residential & Commercial, All Sizes, Free Shipping!
Quality HVAC Filters, All Sizes, Free Shipping!
My Account Order Lookup

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

$
$
$ 149.99 - $ 149.99
$ 149.99
$ 149.99 - $ 149.99
$ 149.99

18x18x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF

The RTF Washable MERV 9 sets a new standard for washable, permanent filters with its advanced polypropylene weave technology, achieving the highest...

View full details
$ 149.99 - $ 149.99
$ 149.99
$ 149.99 - $ 149.99
$ 149.99

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