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Honeywell Air Filter High-Efficiency TRN2121R1/E, 21x21.5x5 - Merv 10

  • Honeywell Air Filter High-Efficiency TRN2121R1/E, 21x21.5x5 - Merv 10
  • Honeywell Air Filter High-Efficiency TRN2121R1/E, 21x21.5x5 - Merv 10
  • Honeywell Air Filter High-Efficiency TRN2121R1/E, 21x21.5x5 - Merv 10
Fits Trane or American Standard Perfect Fit

AVAILABILITY: Sorry, this item has been DISCONTINUED.
Regular Price: $48.99
Price: $39.99
You Save: $9.00
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  • MERV 10 Rating - Up to 20 Times More Efficient Than Typical 5 Inch Pleated Filter.
  • Fits Trane or American Standard Perfect Fit.
  • Captures High Percentage of Household Airborne Particles, Including Microscopic Particles You Can't See.
  • Consumer No Longer Has To Wait For HVAC Rep To Replace Filter.
  • Lasts Up To Six Months.
  • Replacement filter for BAYFTAH21M.
  • Actual Dimensions (Inches): 20.75 x 20 x 5
The Honeywell TRN2121R1/E High Efficiency Air Cleaner Filter is designed for Trane or American Standard Perfect Fit. Featuring an impressive MERV 10 rating, these filters are 20 times more efficient than typical 5 inch pleated filters. The filters are also excellent candidates for capturing a very high percentage of invisible household airborne particles. These filters last up to six months and no longer require an HVAC representative to service and replace your unit's filter. Establish an unrivaled breathing experience for you and your loved ones with Honeywell and their second to none series of Filters.

MERV = 'Minimum Efficiency Reporting Value' this is used to rate the overall effectiveness of an Air Filter. Below you will find a table that measures the MERV strength and tells you the Application of each unit's effectiveness. In general an Air Filter with a higher MERV Rating is more effective and has a broader application, but most residential homes will find the best use from an air filter between the 5-12 MERV rating.



MERV RATING MIN. PARTICLE SIZE TYPICAL CONTROLLED CONTAMINANT TYPICAL APPLICATIONS
1 - 4 > 10.0 Micrometers Pollen, dust mites, cockroach debris, sanding dust, spray paint dust, textile fibers, carpet fibers Residential window AC units
5 - 8 10.0 - 3.0 Micrometers Mold, spores, dust mite debris, cat and dog dander, hair spray, fabric protector, dusting aids, pudding mix Better residential, general commercial, industrial workspaces
9 - 12 3.0 - 1.0 Micrometers Legionella, Humidifier dust, Lead dust, Milled flour, Auto emission particulates, Nebulizer droplets Superior residential, better commercial, hospital laboratories
13 - 16 1.0 - 0.3 Micrometers Bacteria, droplet nuclei (sneeze), cooking oil, most smoke and insecticide dust, most face powder, most paint pigments Hospital & general surgery
17 - 20 < 0.3 Micrometers Virus, carbon dust, sea salt, smoke Electronics & pharmaceutical manufacturing cleanroom
Click Here to Write a Review for this Product. Review

Average Customer Rating Based on 4 reviews: Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Oh how clean the air - 09/29/2016
Reviewer: Ellen Kurinsky
I was very pleased with both the product and service of Honeywell


Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Excellent service - 09/22/2015
Reviewer: Louise Whitehouse
Excellent service and delivery time was great. Appreciate all who work to put this item together and send out for customer. Great job guys & gals.


Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Worth waiting for. - 04/23/2015
Reviewer: Michael Whitehouse
Item was on backlog and Honeywell kept us updated as to shipping. Filter fit the bill...and was much worth the wait. Thank you for superior item.


Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Worth the try - 11/30/2011
Reviewer: Jose Hernandez
decided to try on my trane- glad I did. will use honeywell from now on, works great

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