Precisionaire Furnace Air Filter 18 " X 20 " X 1 " Fiberglass

I have two different size filter systems. I previously used the same company and products. Prompt service.My HVAC guy told me not to use a high rating filters as decreased air flow will cause your unit to run longer and if you forget to change every month, your system efficiency will be affected. My 2 new heat pump systems communicate between the air handler and the compressor and error message will come up when there is insufficient air flow. We don’t have any animals in the house and no allergy problems so these filters work fine. I can afford to change them monthly.

These filters are advertised as 18x20 they are NOT They are a 1/2” larger and WILL NOT FIT your 18x20 size. To make them fit you have to buckle the sides leaving gaps where dust flows through.The seller blew me off no replySO DON’T BUY THEM UNLESS YOU WANT USELESS FILTERS THAT ARE NOT CORRECT SIZETO THE SELLER SHAME ON YOU

Always buy this brand filter it simple and does the job, plus value for your money. I've tried other brands that were more expensive and change less often but to me this does the same job for a lower cost and since I change monthly less stress on furance.

Perfect fit, works well. The ones that arrived are white, not blue as the picture shows. Means nothing to me but maybe somebody out there actually cares to know that lol.

So hard to find these. Can’t just buy them in the store. Ordered these and the ace is perfect. All summer so far.

This filter doesn't fit the standard 18" slot. I couldn't figure out what I was doing wrong, and when I held it up the to the old filter it was about a half inch to an inch to long on the 18" side. All the cramming in the world couldn't solve this problem.

They work and that's a great value for the price.

Item as ordered. Fit right in the Coleman ac on door