Product Review

This 24x24x1 filter measures EXACTLY 23-5/8 X 23-5/8 X 7/8. Your satisfaction is 100% guaranteed! These permanent, washable air filters remove up to 95% of airborne allergens and contaminants and feature low air resistance. Be Careful! Not all electrostatic filters are the same! It is very important that air filters have LOW AIR RESISTANCE so they don't make your central air unit work harder. This can lead to higher energy bills and eventual damage to your HVAC unit. Tired of having to remember to buy that furnace filter every 3 months? Tired of your house being dusty? Replace your disposable air filter with a washable electrostatic filter. It traps more dust and allergens, has a durable metal frame and comes with a warranty or your money back. Just hose off, allow drying for 15 minutes and reinstalling