Canneed-ALT-600/ALT-800 Leak Tester for Aerosol can is used for testing the leakage of Aerosol cans. ALT-600 can test 6 cans at the same time, and ALT-800 can test 8. The permeability tester for aerosol cans blows up the cans up to a maximum of 10 bar and submerges them under water. At the leaking spots of the can then visible air-bubbles escape.