Lennox 19L17 (2-Pack) - 20" x 25" x 5" Healthy Climate HCF20-13 Filter MERV 13 for sale online | eBay
Lennox 20X25X5 MERV 13 Air Filter | Better Air
Amazon.com: Lennox Genuine OEM Replacement Media Filter X0585 (20x20x5) : Tools & Home Improvement
Lennox X6675 Furnace Filters, Carbon Clean Healthy Climate 20x25x5 Air Filter Replacement Merv 16 Filter Media with Homequip Disposal Bag - Walmart.com
Lennox X6675 Carbon Clean 20 x 25 x 5 Inch MERV 16 Efficient Air Filter Replacement for Healthy Climate Air Purifier Cleaner Purification Systems - Replacement Household Furnace Filters - Amazon.com
Lennox Healthy Climate X0582 16 x 20 x 5 MERV 11 Replacement Air Filte - Atomic Filters
Any idea what type of filter I need for a 1962 Lennox? : r/HVAC
Lennox 19L16 16 x 25 x 5 Inch Healthy Climate Boxed Media Air Cleaner MERV 13 Efficient Home Furnace Replacement Filter for Dust, Pollen, and More - - Amazon.com