- GrayMills Corp.'s Bio436 and Bio536 bioremediation part cleaners are made of high-density polypropylene with solid-state electronic controls. A 300-gallon/hr pump delivers heated, aqueous, pH-neutral, nonhazardous cleaning solution through a Flo-Thru brush or adjustable nozzle. Built-in safety features include low liquid-level protection, ground-fault circuit indicator, and marked status indicator lights.
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