• Comparable Filter Replacement for various Ultravation systems that use 16x25x5 filters
• Actual Size: 15 ¾ x 24 ¼ x 4 ¾ 
• Recommend filter life of 3 months to reduce damage to your furnace / AC unit

MERV 13 rating indicates this filter will remove on average over 90% or better of the particles including pollen, pet dander, carpet and lint, dust, mold, spores, hair spray, fabric protector, dusting aids, and cement dust, humidifier dust, lead dust, auto emissions, milled flour, bacteria, most tobacco smoke and more.