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Filterbuy 21x24.5x5 MERV 13 air filter (2-pack) for furnace & AC

Filterbuy ★ 3.8/5 · ItemOracle Score Mid-Range

$107 USD
Price subject to change
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Filterbuy 21x24.5x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters for Rheem, Ruud, and Protech (Actual Size: 20.63 x 24.13 x 4.38)

Filterbuy 21x? air filter with MERV 13 synthetic media for dust, germs, and allergy defense. Customers note easy installation and good value, with occasional sizing concerns

Highlights

  • MERV 13 performance
  • easy installation
  • 2-pack value

Pros

  • MERV 13 filtration for allergy defense
  • Easy to install
  • Strong value for money

Cons

  • Sizing can be inconsistent (some reports too long)
  • Mixed durability feedback

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • home allergy defense
  • dust reduction in HVAC
  • dealer-quality replacement feel

Features

  • Actual size: 20.63 x 24.13 x 4.38 inches; 21x24.5x5 compatible filter frame with 11 pleats per foot
  • MERV 13 synthetic media captures dust and germs while maintaining airflow
  • Electrostatically charged media; lasts longer than fiberglass models; replace every 90 days
  • Recyclable beverage board frames with dual wire backing for improved durability
  • Compatible with Rheem/Ruud filter numbers PD540014 and PD540020

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