The Sea Water Heat Exchanger Tube Adapter is used to provide a secure and leak-proof connection between the heat exchanger tubes and the expansion tank. It ensures that there are no gaps or openings where coolant or seawater can escape, preventing any loss of fluids from the cooling unit. It is made of steel material.Attributes:• Provided with good wear resistance and strength• Provided with 4 mounting holes of size 10.5mm to fit the fastener size of 3/8''Applications:The Sea Water Heat Exchanger Tube Adapter allows for the proper alignment and positioning of the heat exchanger tubes to the expansion tank to maintain the flow of coolant within the intended channels and passages.