Merv 11 Pleated Air Filter - 13 1/2" x 17 1/2" x 1"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.

To find the size the old unit should have sizing information printed on it

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

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than standard fiberglass filters purchased at retail outlets

Some of the other benefits of A+2000 custom air filters include the following

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

the greater it's resistance to airflow

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

from the air stream

the A+2000 uses stage loading

the A+2000 uses no foam that may clog