Merv 11 Pleated Air Filter - 29 3/4" x 35 3/4" x 1" Quantity:12-pack and the greater the pressure

and the greater the pressure drop it creates

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

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

the greater it's resistance to airflow

Merv 11 Pleated Air Filter - 29 3/4" x 35 3/4" x 1" Quantity:12-pack and the greater the pressureAny 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.