HIGH-EFFICIENCY: More depth allows for more capturing power than your usual 1 inch filters
ACTUAL SIZE: 23 3/4 x 29 3/4 x 4 3/8 inches.
MERV RATING: This filter has a MERV rating of 8.
EASY INSTALLATION: The lip of the air filter should fit snuggly into the front facing grill of your vent.
DESIGNED TO FIT: This filter compares to Honeywell FC40R, FC40R1177.