20x30x4 MERV 13 Pleated Air Filter

The filter works great! After a February install, within two days of use, my asthma was greatly relieved (less dust/mold spores) and hubby, with COPD, was noticeably using his inhalers less often. Later, while the California wildfires were raging, we ran just the A/C fan and kept the house, inside, an ashless oasis. (Outside, the solar panels’ output had diminished by half from the ash fallout, before they were cleaned.)
I couldn’t believe how quickly the difference was felt with the inside air quality, after this filter was installed - and what a lung-saver during the worst of the fires!

On time delivery and great response.

The filters came as described and are well worth the money as they remove so much lint and dust from the air!!

THE FILTER FIT MY RETURN DUCT PERFECTLY AND PROVIDES GOOD FILTERATION.

Very satisfied