Lennox 52M63 Collector Box R-407A the internals or diaphragm have

the internals or diaphragm have likely failed

It is rated for 600 psi (body pressure) and can handle fluid temperatures up to 212°F

Does this replace standard definite purpose contactors

protecting the secondary heat exchanger's longevity

Lennox 52M63 Collector Box R-407A the internals or diaphragm haveThe Lennox 52M63 Collector Box is an essential OEM component designed for the efficient management and venting of combustion byproducts in high efficiency residential furnaces. This flue collector box is engineered specifically for the Lennox G40, G43, G50, G51, and G61 series gas furnaces, serving as the critical interface between the heat exchanger and the combustion air inducer. Constructing a reliable seal at the "cold end," the 52M63 ensures that