L&R Quantrex Q140 Ultrasonic with Timer & Heater 3 Quart The Quantrex 140 is the most versatile tabletop ultrasonic cleaner available. Its size is large enough to handle most cleaning needs but small enough to easily fit on a counter. The Q140 is available with or without a heater. With a tank capacity of just under 1 gallon, the Q140 is the ideal ultrasonic cleaner. Delivering 43 kHz of dependable and reliable power, the Q140 will be a workhorse for year after year. Perfect for cleaning instruments, jewelry, or industrial parts. The Q140 comes standard with a 60-minute timer and multi-position drain.