AprilAire 16" x 25" x 4" 1413 Air Filter Performance Upgrade Kit for Model 2400

New Air Purifier Performance at a Fraction of the Cost – Improve performance by converting your AprilAire 2140 or AprilAire or Space-Gard 2400 Whole-House Air Purifier cabinet, with the original 401 MERV 10 Air Filter, to a new rail system and high-performance AprilAire MERV 13 Air Filter Ultimate Filtration Upgrade – The included 413 MERV 13 Air Filter eliminates 40% more dust and 75% more virus-size particles than the older 401 Air Filter. And, other filter options are available to meet your needs! Patented Self-Seal Technology – Ensures a perfect air filter fit for peak air purifier performance and efficiency. Reduces bypass, meaning that particulates that may be harmful to your family's health or HVAC system are captured by the air filter instead of getting through gaps.