20x25x4 MERV 11 Pleated AC Furnace Air Filters. 4 Pack

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20x25x4 Air Filter for HVAC.  
Actual Size: 19-1/2 x 24-1/2 x 3-3/4.  
Filter Rating: MERV 11 | FPR 7 | MPR 1000.  
Sold in Packs of 4 | $15.99 per filter.  

20x25x4 MERV 11 air filter efficiency ratings make the filter a tremendous upgrade from ordinary pleated filters in applications such as residential, hospitals, laboratories and pharmaceutical plants, and commercial office buildings in any system in which a higher degree of clean air is required. Although the MERV 11 provides excellent protection, it still allows good air flow for your heating and cooling system to perform efficiently saving on energy costs and help reducing costly repairs.

MERV 11 Specifications:
• MERV 11 (Minimum Efficiency Reporting Value) based on ASHRAE Test Standard 52.2-2012
• Effectively reduces pollen, dust, pet dander, mold spores, dust mites, bacteria, smoke, smog and other allergens from the air in your home or business.
• Super charged, electrostatically enhanced media.
• Specifically engineered for system applications requiring improved medium efficiency, non-shedding filtration media.
• Synthetic media made up of continuous hydrophobic fibers which do not absorb moisture and can withstand turbulent, high velocity conditions.
• Manufactured for system applications requiring high efficiency, non-shedding filtration media.
• Successful in single filter applications or as improved pre-filter substitutes for disposables, permanent metal filters or media pad/frame filters.
• Improved overall particle size efficiency due to continuous fiber structure and dual-stage electrostatic enhancement which captures an increased amount of smaller particulate than conventional glass media.
• Pleat configuration: Formed into aerodynamic, semi-tapered, wedge-shaped pleats expanding its capability to capture contaminants.
• Recommended to replace at least every 90 days
• Manufactured in the USA


Warranty Information
We have a 100% customer satisfaction policy. If you are not satisfied with your purchase for any reason, just notify us through your account returns area, or email support. We will send you a Free shipping return label and provide your choice of a refund or product replacement. You have 180 days to return an item. Our goal is to always make your life a little easier.

8 Reviews Hide Reviews Show Reviews

  • 5
    20x25x4 filters... great product & price!

    Posted by Michael V on Jul 6th 2022

    I needed filters that were slightly thinner than the standard 4" wide filters. These are the best I've come across so far. They do a great job of trapping particles (as seen when I do my routine checks) and are very affordable. The MERV 11's are the way to go... trap plenty but not too much that it strains the unit.

  • 5
    Fast and Easy!

    Posted by David on Jun 17th 2021

    This is my second order. Always fast and easy to order. The filters arrived in a few days. Nice quality and great pricing.

  • 5
    Great filters that actually fit

    Posted by Michael V on Jan 27th 2021

    For whatever reason, the standard 4" filters don't fit my units. These filters are the perfect fit with a slightly smaller width. These will be my "go-to" filters.

  • 5

    Posted by Marsha Reese on Oct 13th 2020

    The quality of the filters are great, excellent customer service, free shipping and received right on time!

  • 5
    20x25x4 AC furnace filter

    Posted by James McInerney on Dec 19th 2019

    This is the third time ordering my furnace filters through filters delivered and I have been satisfied each time. From the ease of the website while ordering to the quick deliver, I am a very happy customer.

  • 5
    Air filters

    Posted by Cassandra Tubbs on Dec 15th 2019

    They are a perfect fit. Now I know where to get them. Thank you

  • 5

    Posted by Dave on Apr 25th 2018

    Fast easy ordering and delivery. Filters work very well and actually fit in my unit unlike the Home Depot and Lowe’s filters. Thank you for make my it so convenient!

  • 5
    20x25x4 MERV 11 filter

    Posted by Jimmy on Jan 24th 2017

    I ordered 2 filters and the filters were delivered quickly. The filters were delivered within 2 days. the filters were in excellent shape and are of good quality. I would recommend these filters and the company filters delivered.