Filterbuy 13x21.5x0.75 MERV 11 Air Filter (4-Pack)
Universal 13x21.5x1 replacement air filters with MERV 11 synthetic media for dust and allergen control. Customers note good quality and value, though some report fit and size concerns
Highlights
- merv 11 filtration
- universal 13x21.5x0.75 size
- electrostatic pleated design
Pros
- universal compatibility
- merv 11 filtration
- synthetic media for allergens
- durable construction
- value for money
Cons
- size may differ from stated
- possible airflow restriction for some furnaces
- some fit issues reported
Best For
Features
- UNIVERSAL COMPATIBILITY 13x21. 5x1 replacement air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 12. 88" x 21. 50" x 0. 75")
- 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 with 14 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 frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures
