The GT SONIC-T13 is the first model in the series that feels like workshop equipment rather than bench equipment. Its 330 x 300 x 150 mm tank holds thirteen litres, which covers complete carburettor assemblies, small gearbox casings, pump bodies, brake components, optical sub assemblies and full trays of machined parts. 300 W of ultrasonic power at 40 kHz is driven through a denser transducer array, and the two stage switch lets an operator choose between maximum cleaning