Amazon Product
Product Description
This is a genuine, OEM Lennox Healthy Climate HCF14-13 Replacement Box Filter, MERV 13, 20" x 20" x 5". doesn't add to the cost of running the heating and cooling system. Provides whole home filtration for optimal home comfort and air quality, with no additional energy costs. **The Clean Air Delivery Rate (CADR) represents the cubic feet of clean air produced per minute.