Daisy
Last Updated: Feb 7, 2026
9.7
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Discount Filters | 9.85 | ❌ | ❌ | ❌ |
2-PACK , Genuine OEM Filters
OEM / Genuine American Standard / Trane Expandable Media
21-1/8X5, 5 INCH EXPANDABLE MEDIA FOR AIR HANDLER FILTER ENCLOSURE, BAYFTAHEXM2A
Replaces / Supersedes: FLR06231 FLR06231 FLR-6231 FLR06372 FLR-6372 FLR06372 FLR-7962 FLR7962 FLR07962 BAYFTAHEXM2A BAYFTAHEXM MERV10 Honeywell TRN and others
Often Used in American Standard and Trane PerfectFit Filter Systems
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Same Day Supply Inc | 9.93 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Same Day Supply Inc | 9.93 | ❌ | ❌ | ❌ |
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)
OEM Parts, Protect your family's health
EASY TO INSTALL – These ac furnace air filters allow for neat and easy installation; Synthetic fiber air filters that ship conveniently flat and are easy to assemble in very little time
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Same Day Supply Inc | 9.93 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH18M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 17.75 x 20 x 4.7 20x18x5 FLRQB5AH18M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH18 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Discount Filters | 9.85 | ❌ | ❌ | ❌ |
SOLD EACH
American Standard / Trane OEM / Service First Component
Replaces / Supersedes: FLR6232 , FLR06232 , FLR-6232 , FLR6373 , FLR06373 , FLR-6373 , FLR-7963 , FLR7963 , BAYFTFREXM2A , BAYFTFREXM , MERV10 Honeywell TRN , and others.
27-1/4 X 5, 5 INCH EXPANDABLE MEDIA FOR FURNACE FILTER ENCLOSURE, (BAYFTFREXM2A)
Often Used in American Standard and Trane PerfectFit Filter Systems
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Higher efficiency and lower pressure drop than OEM filter.
Captures particles as small as 0.3 microns.
Pleated filter for greater media capacity.
Low pressure drop reduces strain on equipment, provides a comfortable air flow
Easy installation. Angled edge fits neatly into offset side of air cleaner frame.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Same Day Supply Inc | 9.93 | ❌ | ❌ | ❌ |
Higher efficiency and lower pressure drop than OEM filter.
Captures particles as small as 0.3 microns.
Pleated filter for greater media capacity.
Low pressure drop reduces strain on equipment, provides a comfortable air flow
Easy installation. Angled edge fits neatly into offset side of air cleaner frame.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH26M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 25.5 x 20 x 4.7 26x20x5 FLRQB5AH26M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH26 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Higher efficiency and lower pressure drop than OEM filter.
Captures particles as small as 0.3 microns.
Pleated filter for greater media capacity.
Low pressure drop reduces strain on equipment, provides a comfortable air flow.
Easy installation. Angled edge fits neatly into offset side of air cleaner frame.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TTS store | 0.00 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH26M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 25.5 x 20 x 4.7 26x20x5 FLRQB5AH26M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH26 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| The World is Not Enough | 5.10 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH21M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 20.7 x 20 x 4.7 21x20x5 FLRQB5AH21M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH21 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SupplyMount | 9.29 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH23M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 22.7 x 20 x 4.7 23x20x5 FLRQB5AH23M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH23 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Same Day Supply Inc | 9.93 | ❌ | ❌ | ❌ |
Higher efficiency and lower pressure drop than OEM filter.
Captures particles as small as 0.3 microns.
Pleated filter for greater media capacity.
Low pressure drop reduces strain on equipment, provides a comfortable air flow
Easy installation. Angled edge fits neatly into offset side of air cleaner frame.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Konarke Store | 0.00 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH21M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 20.7 x 20 x 4.7 21x20x5 FLRQB5AH21M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH21 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AirstarSupply | 9.83 | ❌ | ❌ | ❌ |
SOLD AS CASE OF (12)
OEM / Genuine American Standard / Trane Service First Filters / NOTE: Replacement Filter Only - DOES NOT Include Housing
American Standard / Trane OEM / Service First Component
Supersedes / Replaces: FLRSF1235XX , FLRSF 1235 , FLRSF1234 and others
Often Used in American Standard and Trane Variable Speed Air Handlers , TEM8A0C36V31DAA , TEM8A0C42V41DAA and other units
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SupplyMount | 9.26 | ❌ | ❌ | ❌ |
NOTE: These are "AH" Filters…NOT "FR" Filters
American Standard / Trane / Service First Part # FLRQB5AH23M11 , up to 6 Month Filter Life
These Filters are ONLY USED with American Standard or Trane QuikBox Housings , Images Shown for Illustration Only
Replaces / Supersedes: 22.7 x 20 x 4.7 23x20x5 FLRQB5AH23M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH23 and others
Ships flat in 2-pack carton
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JIS INC ✅ | 9.44 | ❌ | ❌ | ❌ |
This part is compatible with models including; TWE042P13FB0
This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 173-700-001,FLR04018,FLR00852,FLR01248
Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Trane
This air filter (part number AG0450103) is for furnaces
Follow the instructions in the owner's manual when installing this part
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AirstarSupply | 9.83 | ❌ | ❌ | ❌ |
SOLD AS CASE OF (6)
OEM / Genuine American Standard / Trane Service First Filters / NOTE: Replacement Filter Only - DOES NOT Include Housing
American Standard / Trane OEM / Service First Component
Supersedes / Replaces: FLRSF1235XX , FLRSF 1235 , FLRSF1234 and others
Often Used in American Standard and Trane Variable Speed Air Handlers , TEM8A0C36V31DAA , TEM8A0C42V41DAA and other units
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Trane | 18 |
We've carried out a comprehensive analysis of 833 reviews on filters, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select filters priced around $85.98, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 18 filters for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
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