The Lennox 17F52 Collector Box is an OEM replacement component designed for compatible Lennox gas furnaces. It collects and directs combustion condensate and flue gases from the heat exchanger toward the appropriate drainage and venting pathways, supporting proper furnace operation. Constructed for durability and reliable performance, it helps maintain efficient condensate management,... https://www.partshnc.com/17f52-lennox-collector-box