Merv 11 Pleated Air Filter - 9" x 13" x 1" Quantity:4-pack The "Practical Pleat" contains over

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Produces no ozone or aldehydes

Size: 20x30x1 (30

precisely designed to prevent flame from penetrating the filters and as the grease laden air passes through the filter is collects the grease

Size: 11x9x1 (9

Merv 11 Pleated Air Filter - 9" x 13" x 1" Quantity:4-pack The "Practical Pleat" contains overDesigned for dependable everyday HVAC filtration, MERV 11 Standard Pleated Air Filters help capture airborne particles such as dust, pollen, lint, pet dander, and household debris while supporting proper airflow and HVAC system performance. These disposable pleated air filters are built for residential and light commercial HVAC systems requiring reliable filtration without restricting airflow. The pleated media design increases surface area compared