[Application] Universal coolant expansion tank, fit for mostly of vehicles.Please measure before purchase to make sure there is enough space for installation. [Size] The 2L capacity coolant overflow tank has 2*12 mm barb inlet and outlet ports. The thread size of the bottom drain and side port is M14*1.5. [Feature] Cleaning is easy through the bottom drain port, while the visual level hose makes it easy to monitor coolant levels. [Function] Coolant overflow tank can balance the water tank pressure, effectively cool the engine and enables the engine perform at its best. Coolant reservoir tank can also be used as a oil collection tank to collect impurities, carbon deposits and accumulated sludge in the intake system, prolonging the service life of engine. [Installation] Barb fittings and bottom drain plugs are supplied with O-rings to ensure a good seal and Teflon tape is recommended for installation. EVIL ENERGY is our brand, we're a direct and professional manufaturer, one of greatest manufacturer and exporter in Tuning parts include intake system, exhaust system, engine system, cooling system, interior&exterior parts. Coolant overflow bottle can collect the coolant/water overflowing from the radiator so that the coolant loss is reduced, it will remove carbon and sludge build-up in the intake system, prolong engine longevity, increase engine performance.