Lennox X6664 MERV 11 17x26x4 Pleated Air Filter

Made in USA

Quality Alternative ($38.00/filter)

  • MERV 11, Made in the USA
  • Recommended
List Price $151.99

Our Price: $75.99

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Lennox X6664

  • 4.5 stars
  • (1)
  • MERV 11
List Price $97.99

Our Price: $48.99

In Stock
  • Product Overview
  • Reviews

The genuine OEM Lennox X6664 MERV 11 17x26x4 Air Filter is designed for use in the Lennox HCFPCO12-10 and Lennox PCO-12C PureAir air cleaners.

Lennox X6664 Specifications:
  • Nominal Size: 17" x 26" x 4"
  • Actual Size: 16-5/8" (16.625") x 26" x 4"
  • MERV Rating: 11
  • Filter Life: 6 months for air conditioning and heating use and 12 months for heating use only
Lennox X6664 Pleated Media Filter Compatible Model/Part Numbers:
  • X6664, X666401
  • HCFPCO12-10, PCO-12C
  • 75X74
Lennox 17" x 26" x 4" Pleated AC & Furnace Filter is also known as:
  • Lennox X6664 17 x 26 x 4 Inch MERV 10 Efficient Air Filter Replacement for PureAir PCO-12 Air Purifier Cleaner Purification Systems.
  • Lennox X6664 OEM PureAir Media Filter 17x26x4" (MERV11).
  • Lennox X6664 17” x 26” x 4” Healthy Climate PureAir Replacement for PCO-12C MERV 11.

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

Great website

By Male in 60s and over from Sapulpa , OK on 12/10/2025 3:22:10PM

The filters I have used give good service. The website is easy to navigate

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