Merv 11 Pleated Air Filter - 6" x 30" 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.

these can be purchased in any conceivable size

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

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

In general

28X Increased Efficiency

This is designed to fit into 1" Return Air Grilles

we even have the odd sizes

the A+2000 uses stage loading

and the greater the pressure drop it creates

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

the A+2000 uses no foam that may clog