Manufacturer Name: Lennox Product Number: X6673 OEM Part Number: X6673 Product Description: 20"X25"X5" Merv11 Repl Filter Weight:1.75lbs/793.79g Order Lennox X6673 MERV 11 Replacement Filter 20 Inch X25 Inch X5 Inch today! Shop HVAC Parts & Accessories at PartsHnC with same-day shipping, available at the best prices. https://www.partshnc.com/20x25x5-merv11-repl-filter