4-piece set for filling cooling systems in a universal design with quick coupling, suitable for almost all common vehicles. With the Brilliant Tools cooling system filling and bleeding device BT521100, the difficulty of bleeding is eliminated. The vacuum filling station also draws coolant into the last corners of the cooling system. Time-consuming warm-up is no longer necessary, saving a significant amount of time. The set is delivered in a plastic case, ensuring everything is readily available in one place. Each tool embodies more than a quarter-century of expertise from professionals. This uncompromising quality, professional tools of the highest standard for demanding work environments, is one of the keys to success.