I also use a generic ultrasonic cleaner from Amazon
I use distilled water and a capfull of Spin Clean Record Washing fluid.
I heat the water to 30C for the cleaning.
For what it's worth I precede this with a dry cleaning to remove as much dust out of the grooves and I follow it by a traditionally Spin Clean to get anything stuck in the grooves. Overall I can take a filthy antique store record and nearly fully restore the original sound.