Filterbuy 17.5x23.5x1 Air Filter, MERV 8, 4-Pack vs Filtrete 12x20x1 MERV 11 2-pack air filter

Overall winner: Filtrete 12x20x1 MERV 11 2-pack air filter

Key Differences

Filterbuy (A) offers MERV 8 filtration in a 4-pack and typically sits at a more affordable price point, while Filtrete (B) provides higher MERV 11 filtration in a 2-pack with electrostatic capture and a stated ~3-month pleated life. Choose A if you want a larger pack and lower price tier for basic pollen/dust capture; choose B if you need stronger particle capture (MERV 11) and electrostatic filtration despite a smaller pack size

Filterbuy 17.5x23.5x1 Air Filter, MERV 8, 4-Pack

Filterbuy 17.5x23.5x1 Air Filter, MERV 8, 4-Pack

Filterbuy • ★ 4.7/5 • Budget

MERV 8 pleated air filters for furnace, AC, or heat pump. Improves HVAC efficiency and air quality. Customers find them well-made, easy to install, and effective at keeping air clean

Pros

  • universal compatibility
  • pleated electrostatic design
  • helps reduce pollen and dust
  • easy to install and remove

Cons

  • size noted as mixed perceptions by customers
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Filtrete 12x20x1 MERV 11 2-pack air filter

Filtrete 12x20x1 MERV 11 2-pack air filter

Filtrete • ★ 4.6/5 • Budget

Pleated Filtrete air filter with 3-in-1 technology for cleaner air. Helps reduce dust and allergens; customers note easy installation and improved air quality

Pros

  • 3-in-1 filtration technology
  • easy to install
  • reduces dust and allergens
  • fits 12x20x1 AC furnace slot (actual 11.81x19.81x0.81)

Cons

  • mixed feedback on exact size
  • 1/2 inch variance from nominal size
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Head-to-Head

CriteriaWinner
Price Filterbuy
Durability Filtrete
Versatility Filtrete
User Reviews Tie