The GT SONIC-T27 is the top of the T series: the same 500 x 300 mm footprint as the T20 but with a 200 mm deep tank, giving twenty seven litres and enough depth for upright parts, stacked trays and components that cannot be laid flat. Cylinder heads, gearbox casings, pump columns, tall optical assemblies, large valve bodies and full baskets of small parts fit comfortably, and 500 W of ultrasonic power at 40 kHz drives cavitation through a bath of this volume. The 500 W heater