Engineered for residential water softener systems, Pentair Water Treatment’s new bypass, constructed of investment cast 316 stainless steel, replaces the company’s previous brass version, offering improved corrosion resistance at equal flow characteristics. Available in 3⁄4-and 1-inch NPT inlet and outlet connections, it is sold in configured valves, as single parts and in boxes of 12, and fits all standard residential valves. Pentair Water Treatment