GReddy BREATHER TANK Air in the coolant inside the radiator can cause overheating. The GReddy Breather Tank is designed to remove air that develops in the coolant. It creates a vortex inside the tank to capture air, using natural centrifugal force to separate the coolant from the air. Only the coolant is returned to the radiator, allowing for more efficient heat exchange in the radiator. Generic type Compatible Models CODE Price (Tax Included) Price (Tax Excluded) Notes Universal Type 12400908 ¥21,780 ¥19,800 Includes radiator filler cap (opening pressure 127kpa・ 1.3kg/cm2)Two types of filler sealing caps includedRadiator hose attachment (sold separately) required for return hose connection Option Parts : Universal union