18x18x1 AIRx ALLERGY Air Filter - MERV 11

AIRx 18x18x1-ALLERGY | Our#: 109901
6 pack
 
 

18x18x1 AIRx ALLERGY Air Filter - MERV 11

  • MERV 11 Rated
  • Change Every 3 Months
  • 18x18x1" Nominal
  • 17¾x17¾x¾" Actual
As Low As $7.45 Per Filter
In Stock
Ships Today
Est. Delivery By Jul. 25th
Choose a quantity

If you want to promote superior air quality in your home, this is the air filter for you!   The specialized media in the filter attracts and captures small particles that can cause allergies.   We carry your size of air conditioner filter or furnace filter.  We offer convenient online ordering and quick shipping right to your door!

  • Pleated media provides extended surface area for filtration, and low resistance to airflow
  • MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, dander, smoke and smog
  • Replace every 90 days under normal use
  • Made with pride in the USA
  • 100% free returns on all filters

REVIEW SNAPSHOT®

by PowerReviews
Koch Filter Corporation18" X 18" X 1" MERV 11 Pleated Filter
 
4.5

(based on 36 reviews)

88%

of respondents would recommend this to a friend.

Pros

  • Easy to install (25)
  • Good size/fit (24)
  • Good value (21)
  • Durable (9)
  • Quiet (6)

Cons

    Best Uses

    • Central AC (29)
    • Central heating (25)
    • Home (17)
      • Reviewer Profile:
      • Homeowner (32), Avid do-it-yourselfer (8), Renter (4), Professional (3)

    Reviewed by 36 customers

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    Displaying reviews 1-10

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    2.0

    Actual size is too small

    By Value shopper

    from Maryland

    About Me Homeowner

    Verified Buyer

    Pros

      Cons

        Best Uses

        • Central AC
        • Central Heating
        • Home

        Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

        The filters were made too small and they won't stay in the opening of the return. For now, it is sitting on the cover of the return. Every time the fan stops, the filter will fall on the cover and you can hear a thump. When the fan starts again, the air will suck the filter into position and you can hear the noise as well. It can get annoying when you try to go to sleep. Won't buy them again.

         
        5.0

        A great site for hard to find sizes!

        By Chestnut

        from Orange Park FL

        About Me Homeowner

        Verified Buyer

        Pros

        • Good Fit
        • Good Value

        Cons

          Best Uses

          • Central AC
          • Home

          Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

          I have to purchase 3 different size filters for my central heating and air. I have never been able to find all three sizes at one place locally and have always special ordered. This site is easy to use and I am able to find the right filter quickly.

           
          5.0

          I liked the product and the service.

          By Bob H.

          from Grass Valley, Ca

          About Me Handyman, Homeowner

          Verified Buyer

          Pros

          • Easy To Install
          • Good Fit
          • Good Value

          Cons

            Best Uses

            • Central AC
            • Central Heating
            • Home
            • Large Rooms

            Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

            Great filters, easy to install, and good price. Buy these filters from this dealer.

             
            5.0

            Happy with this product

            By Fran

            from Paramus, NJ

            About Me Homeowner

            Verified Buyer

            Pros

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

            Cons

              Best Uses

              • Central AC
              • Home

              Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

              Product arrived quickly and value is great!

               
              5.0

              Awesome filters better quality

              By Roger

              from Fort Wayne,IN

              About Me Handyman, Homeowner

              Verified Buyer

              Pros

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

              Cons

                Best Uses

                • Central AC
                • Central Heating
                • Home

                Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                I couldn't find the right size in any home improvement store. This is a great product and the perfect size. Thanks!!

                 
                4.0

                It's a well made product

                By Backpacker

                from Huntington Beach. CA

                About Me Homeowner

                Verified Buyer

                Pros

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

                Cons

                  Best Uses

                  • Central AC
                  • Central Heating

                  Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                  Service and delivery were outstanding.

                   
                  5.0

                  Always happy when I get my air filters!

                  By Nanny

                  from Nashville, TN

                  About Me Homeowner

                  Verified Buyer

                  Pros

                  • Easy To Install
                  • Good Fit
                  • Good Value

                  Cons

                    Best Uses

                    • Central AC
                    • Central Heating

                    Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                    I really like getting the reminders letting me know it is time to change the filter! I sometimes forget and that e-mail keeps me up to speed on changing it. They are very good filters for a good price.

                     
                    2.0

                    Value questionable

                    By Mr. Magoo

                    from New Port Richey, Fl

                    About Me Homeowner

                    Verified Buyer

                    Pros

                    • Unable To Rate

                    Cons

                    • Knock Off

                    Best Uses

                    • Central AC
                    • Central Heating
                    • Home

                    Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                    The filters received are not up to the quality of the first order I placed with your company based on a side by side inspection. I may have paid more for the original Accumulair filter order. Inspections of my air handler by a professional HVAC tech revealed that the Accumulair filters did an outstanding job. I fear this last order is of poor quality.

                     
                    3.0

                    Whistlers Filter

                    By RCA in Lutz

                    from Lutz, FL

                    About Me Homeowner

                    Verified Buyer

                    Pros

                    • Easy To Install
                    • Good Value

                    Cons

                    • Noisy

                    Best Uses

                    • Central AC
                    • Central Heating
                    • Home

                    Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                    The filter is slightly under-size which allows a very noticeable whistling sound. Rotating works briefly. Have not found an easy fix.

                     
                    5.0

                    Repeat customer. Will order again.

                    By zoo keeper

                    from Virginia

                    About Me Handyman, Homeowner

                    Verified Buyer

                    Pros

                    • Easy To Install
                    • Good Fit
                    • Good Value

                    Cons

                      Best Uses

                      • Central AC
                      • Central Heating

                      Comments about Koch Filter Corporation 18" X 18" X 1" MERV 11 Pleated Filter:

                      great

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