Carrier 330539-752 Box Kit 328140-751 it mounts via a standard

it mounts via a standard 2-5/8 inch thru-bolt pattern

requiring only a 3" slot cut into the existing ductwork

Dual-Stage Precision: Individually programmable stages allow for versatile heating and cooling control configurations

Precision Balanced: Factory-assembled housing and wheel minimize vibration and mechanical noise

the Nordyne 624695R is the official updated replacement for the original 624695 model

Carrier 330539-752 Box Kit 328140-751 it mounts via a standardThe 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