Featuring a robust brass body and 1-inch NPT connection

for accurate tracking

Utilizing the Lennox 615610-07 kit maintains the precise fan speed control required for multi-stage cooling and advanced dehumidification cycles

it maintains structural integrity under constant thermal stress

When is a vacuum breaker absolutely required

Lennox 12L02 Collector Box 318423-701 Featuring a robust brass bodyAs a seasoned tech, you know that a cracked or restricted Lennox 12L02 Collector Box is a fast track to pressure switch trips and service call backs. This genuine OEM Lennox replacement part, also identified by part number 1242861, is engineered specifically for high efficiency gas furnaces where condensate management is critical. It serves as the primary transition point for combustion byproduct gases, ensuring proper drainage of corrosive moisture