An Expansion Tank Bottom Gasket Cover is positioned at the base or bottom of the expansion tank in the cooling unit. It serves as a sealing element between the expansion tank and other components, preventing coolant leaks and ensuring the cooling unit's proper functioning. Attributes:• Maintain its flexibility and sealing integrity over a wide range of operating conditions• Provided with 4 mounting holes to fit the fasteners of size 3/8" Applications:An Expansion Tank Bottom Gasket Cover is securely fitted to the bottom of the expansion tank and features mounting points for a secure fastening connection. It prevents coolant leaks and ensures the efficient operation of the cooling unit.