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Filter King 21x23x1 MERV 11 Filter (6-pack) - Made in USA

Filter King ★ 3.4/5 · ItemOracle Score Mid-Range

$93 USD
Price subject to change
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Filter King 21x23x1 Air Filter | 6-PACK | MERV 11 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 23 x .75"

MERV 11 pleated air filters, size 21" x 23" x 0.75" (actual). Includes six filters for furnace/AC. Customers note good fit and filter performance, with mixed build quality feedback

Highlights

  • six-pack value
  • made in the USA
  • MERV 11 filtration

Pros

  • MERV 11 filtration
  • six-pack package
  • made in USA
  • pleated design captures more particles
  • easy installation

Cons

  • mixed feedback on build quality
  • some discrepancy on actual size
  • actual size is 0.75" thick vs 1" listed

Best For

  • furnace filter replacement
  • air conditioner filtration
  • homes with central HVAC
  • high-particle environments
  • new installation in US-made filters
  • maintenance cycle extending up to 90 days

Features

  • MERV 11 rated, 6-pack air conditioner filter set
  • Actual size 21 x 23 x 0.75 inches; outer frame 21 x 23 x 1 inch
  • Made in the USA from high-quality materials and construction
  • Designed for up to 90 days of use before replacement
  • Recommended replacement interval 30–90 days for 1-inch filters

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