Use with Mityvac cooling system pressure testers to test caps on most models of Domestic and Asian manufactured cars and light trucks. Quickly detects defective cooling system caps, a commonly overlooked cause of cooling system failures. Adapters connect to tester using self-locking quick disconnects that won't leak under pressure Molded adapter design is comfortable to grip while attaching and removing cap Manufactured from lightweight, durable nylon for a lifetime of use Packaged in a custom molded case with space for four(4) additional adapters Applications: Includes four (4) adapters, MITMVA200, MITMVA201, MITMVA202, and MITMVA203 for use with Mityvac cooling system pressure testers to test cooling system caps found on the majority of Domestic and Asian manufactured cars and light trucks. Includes: MITMVA200 Cooling System Cap Adapter (US and foreign cars) MITMVA201 Cooling System Cap Adapter (Asian cars) MITMVA202 Cooling System Cap Adapter (Asian Cars) MITMVA203 Cooling System Cap Adapter (US and foreign cars) Custom Molded Case User's Manual (English, French, Spanish, German)