Filterbuy 21x27x5 MERV 11 Air Filter (4-Pack) 20.56 x 26.13 x 4.97
Pleated HVAC air filters with MERV 11 media for allergens. Supports efficiency and healthy indoor air. Customers note value and ease of installation, with some sizing and damage concerns
Highlights
- MERV 11 allergen protection
- Actual size close to 21x27x5
- 4-pack for multiple replacements
Pros
- MERV 11 for allergen protection
- Pleated synthetic media
- Easy to install
- Value for money
- Good fit for Trane and American Standard systems
Cons
- Mixed feedback on actual size
- Flimsy construction may be damaged during installation
- Size sometimes reported as too wide
Best For
Features
- WHOLE HOUSE REPLACEMENT 21x27x5 air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 20. 56" x 26. 13" 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
