Merv 13 Pleated Air Filter - 11 3/4" x 23 3/4" x 1" Quantity:12-pack This is a 5" MERV

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

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

The unit also includes a magnetic mounting bracket for optional installation inside air handlers

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

compact electronic power supply

Merv 13 Pleated Air Filter - 11 3/4" x 23 3/4" x 1" Quantity:12-pack This is a 5" MERVAny 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.