21x26x4 MERV 9 Lennox X6667 / X6669 Compatible Filters (2 Pack)

SP-21x26x4W-P9M2
Made in USA
List Price: $101.99 Our Price: $50.99 Save: $51.00!
Made to order (See notes below)
Replace every 6-12 months
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  • Product Overview
This item is made to order, non-returnable, and ships within 1 business day. Please check the actual dimensions listed below prior to ordering.
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 9 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