DTI-202 Ultrasonic Cleaner Cleaning Solution for Carburetors, Parts, 1 Gallon Concentrate, Makes 6 Gallons. Great for cleaning Carburetors, Fuel Injectors, Engine parts, and much more. Ultrasonic cleaning is based on the cavitation effect caused by high frequency ultrasonic wave vibration signals in fluid. Microscopic bubbles are formed, and they implode violently causing the cavitation which creates an intense scrubbing action on the surface of the item being cleaned. The bubbles are small enough to penetrate microscopic crevices, cleaning them thoroughly and consistently. 1 gallon of concentrate makes 6 gallons of cleaner. Specially formulated for carburetors and small engine parts. Superior cleaning capabilities. No solvent or VOC content. Non-petroleum based. DTI Ultrasonic Cleaners are available separately, see models DSA50-SK2 and DSA150-SK2.