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24x24x1 Filter - Multi-Pleat XL11™ Filters manufactured by Koch Filter*Made in the USA!*Low resistance to airflow*High Dust Holding Capacity*Standard or High Capacity filters available. *Pleated 24x24x1 Filters available in Standard or High Capacity ratings for lower resistance to airflow. SOLD AS A CASE OF 12 AIR FILTERS (More info on MERV 11...
24x24x1 filter - Multi-Pleat XL8™ Filters manufactured by Koch Filter*Made in the USA!*Low resistance to airflow*High Dust Holding Capacity*Standard or High Capacity filters available. *Pleated 24x24x1 Filters available in Standard or High Capacity ratings for lower resistance to airflow. SOLD AS A CASE OF 12 AIR FILTERS (More info on MERV 8 Filters)