21x45x1 MERV 11 AC & Furnace Filters (6 Pack)

Made in USA
  • SP-21x45x1A-P11M6

  • 5 stars
  • (2)
List Price $372.86

Our Price: $186.43

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Made to order (Ships in 3 business days)
Replace every 3 months
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  • Product Overview
  • Reviews
This item is made to order, non-returnable, and ships within 2-4 business days. Please check the actual dimensions listed below prior to ordering.
Notice: Air filters are often cut slightly smaller than the actual measurement during the manufacturing process. A margin of error of up to 1/8" is allowed without negatively affecting the overall fit and performance of the air filter.
MERV 11 21x45x1 / 45x21x1 Furnace Filter
  • This is a double panel filter. Due to the large face area (length x width), two filters will be taped together to make this size. This is an industry standard practice and does not affect the performance of the filter.
  • This is a non-standard size filter. The actual dimensions of the filter are 21" x 45" x 0.75". Please measure your existing filter before ordering to make sure it will be compatible.
  • MERV 11 rated per ASHRAE test standard 52.2.
  • Long-lasting value package
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0 out of 0 people found this review helpful.
5.0 Stars

All Filters Customer Service

By Man in 60s and over from BOCA RATON, FL on 10/27/2020 8:54:37 AM

Have used this company many times, this order was damaged. Sent an e-mail, was answered and within a week they replaced them. Very good comapny and excellent customer service. You will not be sorry if you purchase from them.

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0 out of 0 people found this review helpful.
4.5 Stars

Good quality filters

By Man in 50s from PEMBROKE PINES, FL on 8/20/2020 7:45:52 AM

They are very good quality filters, but the best part is the custom made. Is made to specs and very easy to install. And the price is right.

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