Filterbuy 18x21x1 MERV 11 Air Filter
Price tier: Budget
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Electrostatic pleated air filter with MERV 11 for allergens and pets; fits 18x21x0.75. Customers note good quality and fit, value, and efficiency
Highlights
- MERV 11 synthetic media
- Actual size 18 x 21 x 0.75
- USA-made
Pros
- MERV 11 filtration
- Universal 18x21x1 replacement
- Improves HVAC efficiency
- American-made
- Good quality and fit (customer insight)
Cons
- Size complaints from some customers
- Durability varies (flimsy noted by some)
Best For
Features
- UNIVERSAL COMPATIBILITY 18x21x1 replacement air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 18. 00" x 21. 00" 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
