Adjustable Washable Electrostatic Air Filter

An adjustable air filter allows you to buy one air filter that will fit multiple sizes. Our adjustable furnace air filter (Model ADJ2025) is a permanent and washable electrostatic panel filter that can fit all sized furnace filters  from 14″ x 20″ to 20″ x 25″.

Installing An Adjustable Sized Air Filter

Installation is easy, with no screws needed. All you need to do is measure the length and width of the air filter you are replacing; trim the adjustable filtration media with scissors and insert the filtration media back into the “U” channeled durable plastic frame. Slide the panel frame sections together and the components are securely in place.

Washable Air Filters Are Environmentally Friendly

The adjustable air filter contains layers of woven polypropylene media and foam supported on each side by a durable plastic grid. The filter carries a lifetime warranty and an anti-bacterial agent is manufactured into the filter media to inhibit growth of bacteria on filter surface. Simply rinse with water monthly, let dry and reinstall in your HVAC system.


  • I'd like to take a moment to thank-you for your support, your quick replies and your thoroughness throughout 2012. It has been a pleasure working with you and your team and I look forward to doing so again in 2013.

    Melinda May AllastonAnnexair, Canada

An adjustable air filter can be easily modified to fit any sized furnace filter from 14″ x 20″ to 20″ x 25″.