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Nordic Pure MERV 14 Replacement Filters for Lennox X6673/X6675

Nordic Pure ★ 3.6/5 · ItemOracle Score Premium

$139 USD
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Nordic Pure 20x25x5 (19_3/4 x 24_3/4 x 4_3/8) Lennox X6673_X6675 Replacement MERV 14 Air Filters 2 Pack

MERV 14 replacement air filters for Lennox X6673/X6675, 20x25x5 nominal size with exact 19 3/4 x 24 3/4 x 4 3/8 actual size. Improves dust capture and air quality; noted good fit in some configurations

Highlights

  • MERV 14 filtration
  • exact replacement for Lennox X6673/X6675
  • actual size stated for fit verification

Pros

  • high filtration efficiency (MERV 14)
  • made in the USA
  • fits Lennox X6673/X6675 replacements
  • good fit and air quality improvements
  • valued for quality and value by customers

Cons

  • mixed opinions on exact size
  • some reports of build quality variability

Best For

  • replacement in Lennox furnace filters
  • use in bottom return box configurations
  • improve indoor air quality in homes
  • health-sensitive environments
  • commercial unit filtration

Features

  • Actual size 19 3/4 x 24 3/4 x 4 3/8 inches for fit verification
  • Replacement for Lennox X6673 and X6675 media air filters
  • MERV 14 filtration level equivalent to MPR 2800
  • Made in the USA with US-sourced materials
  • Nominal size 20 x 25 x 5 inches for reference

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