Filterbuy 21x27x5 Air Filter 3-Pack, MERV 11 (MPR 1200) Allergen Defense
Pleated HVAC air filters for furnace, AC, or heat pump with MERV 11 media. Helps capture dust and allergens while preserving air flow. Customers note good quality and value, with mixed fit reports
Highlights
- MERV 11 synthetic media
- allergen defense filtration
- actual size close to 20.56 x 26.13 x 4.97
Pros
- pleated filter with MERV 11 effectiveness
- captures dust and allergens
- aligned with compatible sizing
- value for money
- good quality
Cons
- fit reports are mixed
- actual size differs from nominal
Best For
Features
- Actual size 20.56 x 26.13 x 4.97 inches; fits 21x27x5 frames
- MERV 11 synthetic media captures dust and allergens with 95% efficiency
- Electrostatically charged media with 8 pleats per foot; lasts longer than fiberglass
- Recyclable beverage board frame with dual wire backing for durability
- Compatible with Trane Perfect Fit and American Standard models
