Filterbuy 18x24x1 MERV 11 Air Filter (4-Pack) – Pet & Allergy Defense
Air filters with MERV 11 media for dust, allergens, and pets. Universal 18x24x1 replacement for furnaces, ACs, or heat pumps. Customers note good quality and value, with some sizing and fit considerations
Highlights
- MERV 11 synthetic media
- Actual size close to 17.38 x 23.38 x 0.75
- 4-pack value for replacement filters
Pros
- MERV 11 filtration for dust and allergens
- Electrostatic pleated design
- Universal compatibility with furnace/AC/heat pump
- Sturdy construction and good value (customer insight)
Cons
- Actual size may differ from stated
- Some fittings may restrict airflow for certain furnaces
Best For
Features
- Universal 18x24x1 replacement filter for furnaces, air conditioners, or heat pumps
- MERV 11 synthetic media captures dust and allergens with minimal airflow restriction (comparable to MPR 1200 & FPR 7)
- Electrostatically charged with 14 pleats per foot for extended filtration life
- Durable beverage board frames with dual wire backing for improved rigidity and temperature resistance
- Made in the USA from recyclable materials with actual size 17.38 x 23.38 x 0.75 inches
