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Trane FLRQB5FR17M11 16.7x26x4.7 MERV 11 QuikBox Replacement Media Filter - 2 Pack

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  • Ships flat in 2 pack carton
  • 16.7 x 26 x 4.7
  • MERV 11
  • OEM Trane
  • QuickBox replacement filters are backward compatible to fit every TFM FilterBox
  • Fits new Trane QuikBox filter cabinets as well as Trane Perfect Fit TFM175B0FR0 cabinets
  • Synthetic fiber filter in a chipboard frame that ships flat and pops up to a finished assembly in less than one minute (instructions printed on frame)
  • High dust holding capacity
  • Average life 6 months under normal operating condition
  • Up to 20 times more effective
  • 4.7 inch filters

Canadian Buyers

Here are some of the Quickbox filter model numbers. Click on the part number to go to the product page. Experience check by Atomic 

FLRQB5AH18M11 17.7 x 20 x 4.7

FLRQB5AH21M11 20.7 x 20 x 4.7

FLRQB5AH23M11 22.7 x 20.7 x 4.7

FLRQB5AH26M11 25.2 x 20 x 4.7

FLRQB5DN17M11 16.7 x 20 x 4.7

FLRQB5FR16M11 15.7 x 19 x 4.7

FLRQB5FR17M11 16.7 x 26 x 4.7 

FLRQB5FR21M11 20.2 x 26 x 4.7

FLRQB5FR24M11 23.7 x 26 x 4.7

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Customer Reviews

Based on 21 reviews
Mark Pheatt
Returned orde

Somehow I managed to order the wrong filter size. Atomic was gracious enough to accept a return. I found the correct filter size and placed a new order.

Deborah McShan
Found what we needed!

Our air conditioning system requires an odd size filter. We found exactly what we needed at Atomic Filters. The order was received quickly, and we will definitely order from this company again.

Jeffrey Lancaster
Perfect Fit - Easy Assembly - Great Communication

I chose this company because of a very helpful Youtube video explaining how to assemble the air filter that I was looking to purchase. The video was very well done and I knew that if they put time and effort into making a quality video to simplify the installation process, then it was probably a good, reliable company. My order arrived in a timely manner. The assembly of the filter and the installation of the filter were very easy. The price was extremely competitive with other large-box retailers. I would highly recommend this company and will definitely be purchasing more filters from them in the future.


Fits perfect! Builder grade. Works great.

Jane McNulty

Quick delivery as advertised. All good.