Residential use, Temperature selector Knob missing, (still fully operational) drain knob broken. (never was exposed to chemicals alway used with Dawn dish soap). The item "Elma Sonic S300H 7.5 Gal Ultrasonic Cleaner, Digital+Timer+Heat+Degassing" is in sale since Sunday, May 9, 2021. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Other Medical & Lab Equipment".The seller is "pvwiring" and is located in Great Falls, Montana. This item can be shipped to United States.