Profile: Mattson/Witt Precision Products, Inc. is a source for custom manufactured plastic component solutions for the water treatment industry. We offer a comprehensive selection of plastic components including our trademarked Tough Stuff® line of custom-made plastic components. We specialize in machining and assembling standard & custom plastic parts. Our product line includes tank heads, slotted laterals, flow controllers, brine control valves, riser tubes and header systems.