The Bosch HPT 500 Bladder Adapters are designed for use with Bosch's HPT 500 Heavy Duty Smoke Machine to locate leaks in exhaust, intake and turbocharging systems in passenger cars and heavy duty exhaust systems. The adapters seal off various-size pipes and hoses when checking for leaks, and range in size from 1.5" to 5.9". Multiple bladders can be used to completely seal hoses and pipes so they can be filled with smoke to check for leaks. The HPT 500 is capable of testing an entire system in 15 minutes and can help technicians diagnose leaks faster in exhaust after-treatment systems in medium and heavy duty vehicles.