This MERV-8-rated filter effectively captures microscopic air particles as small as 10 microns without affecting airflow. Specification Dimensions: 12.2"D x 9.9"W x 0.4"H Weight: 0.06 lbs/pc Features Easy to replace and use Aluminum frame design enhances structural stability Regular filter replacement can boost compressor efficiency Changing the Filters Replace as needed, with a recommendation of every 3-6 months Follow the arrow indicator on the border for the correct installation direction