Filterbuy 21x23.5x5 MERV 11 Pleated Filter

Filterbuy ★ 4.70 (520 reviews) Mid-Range

Price tier: Mid-Range
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Filterbuy 21x23.5x5 Air Filter MERV 11 Superior Pet & Allergy Defense (1-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97)

Air filter for furnace/AC with MERV 11 performance; protects allergen and pet dander. Customers note perfect fit and good value

Highlights

  • MERV 11 allergen defense
  • Perfect fit claim
  • Pet/dander and dust filtration

Pros

  • MERV 11 synthetic media
  • Fits 21x23.5x5 (actual 20.00 x 23.09 x 4.97)
  • Good value for money
  • Effective at filtering dust and pet hair
  • Lasts a while

Cons

  • Actual size differs from nominal
  • Only 1-pack listed
  • Price may be high for single filter

Best For

  • furnace replacement
  • air conditioner filtration
  • heat pump filtration
  • pet-dander defense
  • allergen reduction
  • dust control in homes

Features

  • WHOLE HOUSE REPLACEMENT 21x23. 5x5 air filters for your furnace
  • air conditioner
  • or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 20. 00" x 23. 09" x 4. 97")
  • MERV 11 PERFORMANCE Protect your home or business from allergens
  • pets
  • and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
  • LASTING FILTRATION Electrostatically charged media (made in the USA) with 8 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
  • SUPERIOR CONSTRUCTION Easy installation beverage board (recyclable) frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures

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