Profile: Integrity Distribution LLC. manufactures portable sinks for outdoor, food service, restaurant sinks, hand hygiene, and hand wash stations. Our hand washing stations are capable of dispensing hot and cold water, because they are completely self-contained systems. Our portable sink offers an economical and safe solution for placing hand washing stations with our self-contained portable sinks in areas where hard plumbing does not reach or work. Mobile, self-contained Ozark River portable sinks, with our quick connect feature are easy-to-use and plug into 110V 20A outlet.