Brand AIR HANDLER Air Filter Item Non pleated air filter Style - Air filters Panel Performance rating MERV1 Rated filter size 14x20x1 Multimedia material Glass fiber Frame or header Wooden board Metal grill No Filter frame color Brown Media color White Media area 1,9 sq. ft. Waterproofs out dog and cats; Dust dust dust powder; remove Temperature.150 °F Nominal Height 14 inches Nominal Width 20 inches Nominal depth 1 inch Royal filter size 13-1/2 inches x 19-1/2 inches Real height 13-1/2 inches Real width 19-1/2 inches Real depth 3/4 in. UL 900 United Nations National Security Commission Product Description Fiberglass air filters remove large particles and wastes from the air current, such as leaves, chips and other visible particles from the naked eye. They offer much less restriction to the ventilation system and are often used as prefilters in industrial applications. _