When the thermostat opens or a power loss occurs

While the 255°F thermal rating is common

Specifically designed for Weil-McLain CGa

it includes a built-in visual indicator for real-time status verification

Heil Quaker ICP 1008676 Gasket When the thermostat opens orThe Heil Quaker ICP 1008676 Collector Box Gasket is a critical OEM sealing component required for maintaining the pressure integrity of the condensing furnace secondary heat exchanger. As a precision engineered International Comfort Products replacement part, this gasket prevents combustion byproduct leakage and ensures that the inducer motor maintains the necessary static pressure to safely vent flue gases. This furnace collector box seal is