Diesel Heater Port Extended Pass-Through – Thick Wall Adapter (Up to 1-1/2" / 38mm) Hat It is commonly used in

It is commonly used in truck camper topper builds where space is limited and clean routing is important

and performance

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Diesel Heater Port Extended Pass-Through – Thick Wall Adapter (Up to 1-1/2" / 38mm) Hat It is commonly used inDiesel Heater Port Pass Through Extended Wall Thread This is the extended threaded pass through section used with our Diesel Heater Port system. It allows the heater duct to pass cleanly through a wall while maintaining a secure threaded connection for the heater port components. This part can be added to the Diesel Heater Port Kit when installing through thicker walls. The standard kit is designed for walls around 1 2" thick, while this extended pass