The Lennox X6670-MERV 11 Furnace Filter is the perfect replacement filter for your Lennox or Honeywell furnace. Measuring 16" H x 25" L x 5" W, this filter is designed to fit perfectly into your existing system. With dimensions of 15.65" x 24.65" x 4.31", this MERV 11 filter offers a 98% efficient filtration, ensuring that your home's air is clean and healthy. Designed to fit the X6660 HCC16-28 air cleaner, this high-quality filter is a must-have for maintaining excellent air quality in your home. Keep your furnace running smoothly and enjoy cleaner, fresher air with the Lennox X6670-MERV 11 Furnace Filter.