Merv 8 Pleated Air Filter - 21 1/4" x 23 1/4" x 1" Quantity:12-pack They are easy to install

They are easy to install with custom air filters made to the sizes that you specify

åÊWe look forward to delivering our American-made

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

This is designed to fit into 1" Return Air Grilles

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

Merv 8 Pleated Air Filter - 21 1/4" x 23 1/4" x 1" Quantity:12-pack They are easy to installAny 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.