21x26x4 MERV 13 Lennox X6667 / X6669 Compatible Filters (2 Pack)

  • SP-21x26x4W-P13M2

Made in USA
List Price $115.99

Our Price: $57.99

Save: $58.00!
Discontinued
Replace every 6-12 months
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  • Product Overview
21x26x4 / 26x21x4 Whole House Air Cleaner Filter Replacement
  • Offers an economical alternative to the name-brand filter without compromising air quality or efficiency.
  • Actual dimensions of the filters are 20-3/4" x 25-3/4" x 3-3/4".
  • MERV 13 rated per ASHRAE test standard 52.2.
Compatible OEM Filter Media Part Numbers
OEM Brand OEM Part Number OEM MERV Value
Lennox X6667 10
X6669