The leak testing device for cooling systems is a comprehensive set specifically designed for checking the tightness of cooling systems. It includes 15 different adapters housed in a practical plastic case. Weighing 0.77 kilograms and with a compact length of 250 millimeters, the device is easy to transport and store. The height of 80.7 millimeters ensures that the case fits even in tight spaces. The use of high-quality plastic as the material guarantees high durability and resilience of the adapters. This testing device is ideal for professionals and technology enthusiasts who want to conduct precise and reliable leak tests. The various adapters allow for flexible application in different cooling systems, making the set versatile. It is an essential tool for the maintenance and repair of cooling systems, suitable for both professional workshops and private use.