Spent a bit of time looking at the Humminguru and it looks like a Degritter, but has the power levels of a Vevor tank or less. Perhaps the smaller wash chamber offsets the power needs. But not even a shadow of the ultrasonic strength.
The HG is actually deceptively powerful because the tank volume is very small - 400 ml (the record spins very close to the transducers) vs the DG 1400-ml and the HG is 40-kHz while the DG is 120-kHz, and as the kHz increases, the power necessary for cavitation increases. However, the HG has two 30W transducers (one on either side) while DG the four75W transducers (two on either side) which gets better coverage of the record.

