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Filter King 21x21x1 MERV 13 Pleated Air Filter (4-Pack)

Filter King ★ 3.7/5 · ItemOracle Score Mid-Range

$60 USD
Price subject to change
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Filter King 21x21x1 Air Filter | 4-PACK | MERV 13 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 21 x 21 x .75"

MERV 13 pleated air filters in a 4-pack sized 21" x 21" x 0.75". Captures more particles while maintaining airflow. Customer notes include good fit and air clarity

Highlights

  • MERV 13 filtration capability
  • 4-pack for extended use
  • USA-made manufacturing

Pros

  • MERV 13 filtration
  • 4-pack for multiple replacements
  • Made in the USA
  • Pleated design for enhanced particle capture
  • Easy installation

Cons

  • Mixed feedback on true-to-size fit
  • Some concerns about sturdiness under use

Best For

  • central air conditioning filtration
  • furnace filter replacement
  • humidifier/AC system maintenance
  • home air quality improvement
  • regular HVAC upkeep

Features

  • MERV 13 rated air filter in a 4-pack for HVAC use
  • Actual size 21 x 21 x .75 inches; nominal size 21 x 21 x 1 inches
  • Made in the United States from quality materials
  • Designed to last up to 90 days before replacement

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