*** NO LONGER AVAILABLE *** Water swirl pots are fitted as common practice on many race cars, where the demands on the cooling system are high due to increased power and engine revs. Swirl pots fit into the radiator top hose and their function is to swirl the incoming water, which due to centrifugal force removes the air bubbles through the top spout, which is then fed back to the top of the header tank. Removing the air caused by localised boiling within the cooling system will allow the water to have a more stable operating temperature. Once the air is removed your radiator will work more efficiently as air takes up valuable space without conducting any heat away. An ideal partner to our range of header tanks, all swirl pots are manufactured from the best quality aluminium, highly polished and supplied with a fitting kit including hose clips and Samco silicone hose in blue.