20x20x4 AIRx ALLERGY Air Filter - MERV 11

AIRx 20x20x4-ALLERGY | Our#: 174536
6 pack
 
 

20x20x4 AIRx ALLERGY Air Filter - MERV 11

  • MERV 11 Rated
  • Change Every 6 Months
  • 20x20x4" Nominal
  • 19½x19½x3¾" Actual
$89.70 $99.95
Case of 6 Filters, $14.95 ea
In Stock
Ships Monday, Jan. 22nd
Est. Delivery By Jan. 29th

20x20x4 AIRx ALLERGY Air Filter - MERV 11

(Actual Size 19.5" x 19.5" x 3.75")

NOTE: Will not work for Honeywell and Air Bear Air Cleaners.

Better filtration is the first step in improving Indoor Air Quality. Pleated Panel Filters outperform ordinary furnace filters with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. We achieve this with 100% synthetic electrostatically charged gradient density media, optimum pleat spacing and high initial and sustained efficiency, high dust holding capacity and very low pressure drop. The media is resistant to a wide range of chemicals, does not absorb moisture and will not support microbial growth.

Benefits:

  • Great for helping reduce airborne allergens such as bacteria, particles that carry viruses, pollen, mold spores, fine dust, and pet dander.
  • Filter material will not support the development of mold, mildew, bacteria or other microorganisms in normal use.
  • No chemicals added. Filters are chemical free!
  • Over 30-times more efficient at capturing micro particles than ordinary fiberglass filters.
  • Lasts UP TO 3 months!

Features:

  • MERV 11 Rating
  • 100% synthetic gradient media, electrostatically charged
  • 30 gauge galvanized expanded metal grid
  • Moisture resistant double wall beverage board
  • Media pack totally bonded to frame
  • This product is listed and rated by Underwriters Laboratories as U.L. Class 2.

REVIEW SNAPSHOT®

by PowerReviews
Koch Filter Corporation20" X 20" X 4" MERV 11 Pleated Filter
 
4.5

(based on 26 reviews)

92%

of respondents would recommend this to a friend.

Pros

  • Good value (17)
  • Good size/fit (15)
  • Easy to install (13)
  • Durable (7)
  • Compact (3)

Cons

    Best Uses

    • Central AC (20)
    • Central heating (17)
    • Home (10)
      • Reviewer Profile:
      • Homeowner (21), Avid do-it-yourselfer (3)

    Reviewed by 26 customers

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    Displaying reviews 1-10

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    5.0

    half price

    By butch

    from Boise,Idaho

    About Me Homeowner

    Verified Buyer

    Pros

    • Easy To Install
    • Good Value

    Cons

      Best Uses

      • Central Heating

      Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

      half the price of local dealer.

       
      5.0

      Great Experience

      By Pam

      from Wichita Falls TX

      About Me Homeowner

      Verified Buyer

      Pros

      • Durable
      • Easy To Install
      • Good Fit
      • Good Value
      • Quiet

      Cons

        Best Uses

        • Central AC
        • Central Heating
        • Home

        Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

        Be sure and read the printed instructions on selecting your size.

         
        5.0

        perfectly smooth transaction

        By Wayne B.

        from Albany, NY

        About Me Retail Store Manager

        Verified Buyer

        Pros

        • Good Value
        • Much Cheaper Than Retail

        Cons

          Best Uses

          • Smoke Filtration System

          Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

          Met expectations.

           
          5.0

          Perfect Fit - Great Price

          By Flip

          from The Villages, FL

          About Me Homeowner

          Verified Buyer

          Pros

          • Absolute Match For My Ac
          • Good Fit
          • Good Value

          Cons

            Best Uses

            • Central AC
            • Central Heating

            Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

            Great Filter - higher MERV for a lower price than the HVAC company would provide

             
            5.0

            Excellent Filters

            By None

            from Leesburg, Florida

            About Me Handyman, Homeowner

            Verified Buyer

            Pros

            • Best Price I could find
            • Good Value
            • Quality filters

            Cons

              Best Uses

              • Central AC
              • Central Heating

              Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

              These filters changed on a regular basis keep our home clean and dust freel which please my wife to no end.

               
              1.0

              Watch the NOMINAL size

              By gjoebuck

              from Harker Heights, TX

              About Me Homeowner

              Verified Buyer

              Pros

                Cons

                • Too small

                Best Uses

                • Central AC
                • Central Heating
                • Home

                Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

                You must watch the NOMINAL size versus the advertised size as there is a BIG difference - well actually only .25" in two of the dimensions and almost an inch in the width. This is CRITICAL. Unfortunately we did not pay enough attention to this and had to return the filters at our own expense - which is not cheap either. So be careful.

                 
                1.0

                Read the fine print. Actual size is not

                By CW

                from Vancouver Wa

                About Me Homeowner

                Verified Buyer

                Pros

                • Easy To Install
                • Good Value

                Cons

                • Ineffective

                Best Uses

                • Central AC
                • Central Heating

                Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

                I need a real 20X20X4
                The actual size is not 20X20X4 and it is not a tight fit like it requires.

                 
                5.0

                A Good Buy

                By jayjay

                from powhatan, va.

                About Me Homeowner

                Verified Buyer

                Pros

                • Easy To Install
                • Good Fit
                • Good price
                • Good Value

                Cons

                  Best Uses

                  • Central AC
                  • Central Heating
                  • Home
                  • Large Rooms

                  Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

                  Answers my filter needs superbly!! Fit is great.

                   
                  4.0

                  Great product

                  By Homeowner

                  from Abilene, TX

                  About Me Homeowner

                  Verified Buyer

                  Pros

                  • Durable
                  • Good Fit

                  Cons

                    Best Uses

                    • Central AC

                    Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

                    I use these filters in our AC unit, and I had a hard time finding the right size to fit for a 4X4, but these fit perfectly and seem to work great. I just bought them, so I'm not positive about long term quality, but they appear to be in very good shape so far

                     
                    5.0

                    Great product

                    By Mike

                    from University Park, TX

                    About Me Homeowner

                    Verified Buyer

                    Pros

                    • Easy To Install
                    • Good Value

                    Cons

                      Best Uses

                      • Central AC
                      • Central Heating
                      • Home

                      Comments about Koch Filter Corporation 20" X 20" X 4" MERV 11 Pleated Filter:

                      Easy to order, arrived on-time, competitively priced.

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