Lennox Plastic Header Box for Furnace

The Lennox Plastic Header Box (also called a cold end header box or collector box) is a genuine OEM replacement part for Lennox condensing gas furnaces. It is the transition point between the secondary heat exchanger and the combustion air inducer and condensate drain. It collects and channels combustion byproducts and condensate out of the furnace.

Key Features:

• Made of hard plastic, which resists the acidic condensate produced by high-efficiency furnaces
• Helps keep the pressure needed for the combustion air inducer and pressure switches to work properly
• Helps prevent leaks, condensate backup, and the pressure switch trips and lockouts that can follow
• Genuine Lennox OEM part, made to Lennox specifications for a direct-fit replacement
• Restores the furnace's original drainage and performance when the original box is cracked, leaking, or clogged

Lennox is a long-established HVAC manufacturer. Using genuine OEM replacement parts helps keep your furnace running safely and efficiently. Each header box in this line is for specific Lennox furnace models, so choose the part number that matches your unit.