Just saw this on Ebay. 6L ultrasonic cleaner for $25 and free shipping. Not sure how legit it is. I snagged one.
https://www.ebay.com/itm/362463553929?ul_noapp=true
Oh, I have no affiliation with this.
https://www.ebay.com/itm/362463553929?ul_noapp=true
Oh, I have no affiliation with this.