The UH-40™ & UH-50™ Series features the reliable StoneAge UH-H9G12 Swiveland belt drive system for thorough and productive surface cleaning. Replaceable sapphire jets provide hard hitting power for epoxy coating removal or other surface preparations. The UH-40 uses an air motor and the UH-50 a hydraulic drive. Additional options include a 4-arm jet assembly with up to a 20 jet path or the bar head configuration which gives a 14 jet path. Both feature a rugged, high flow design, an optional 90 inlet and use 3/8" OS6 Sapphire nozzle tips.