1.) Test the presence of CO2 in the cooling system.
2.) Kit contains transparent cylinder with two test chambers connected vertically for better observation.
3.) Provided with high quality US-made tester fluid and an extra empty bottle of used fluid storage.
4.) Rubber adapter fits almost every type of radiator filler neck.
5.) Rubber bulb helps draw air from the radiator into the test chambers.
6.) This set excludes three steel adapters.