Merv 13 Pleated Air Filter - 21 1/2" x 21 1/2" x 2"Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter.

these can be purchased in any conceivable size

Filtering inserts are anti-microbial and are more efficient in capturing particles

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

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

allowing the grease to drain into through below

and long service life which reduces HVAC equipment maintenance and energy costs

Simply cut a hole

from the air stream

The permanent frame is constructed of space-age plastics that are resistant to corrosion

One way to overcome this problem is to increase the surface area of the filter media

Unlike some permanent custom air filters

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