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Key Benefits Precise Compatibility: Engineered specifically for A-4400 Series air dryers and A-4000-153 condensate filter assemblies
it mounts via a standard 2-5/8 inch thru-bolt pattern
Precision Balanced: Factory-assembled housing and wheel minimize vibration and mechanical noise
requiring only a 3" slot cut into the existing ductwork
Engineered with advanced microprocessor technology
Carrier 330539-752 Box Kit 328140-751 Key Benefits Precise Compatibility: EngineeredThe Carrier 330539 752 Coupling Box Kit is a critical OEM replacement part engineered for high efficiency condensing furnaces. Designed specifically for the secondary heat exchanger assembly, this kit ensures a gastight seal between the cell panel and the condensing unit, preventing the leakage of combustion byproducts and corrosive condensate. Constructed from heavy duty steel and precision molded components, it is a factory authorized part that
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