Westlake Pipe & Fittings V60711N 6" 711 Series PVC and EPDM Butterfly Valve with Blue Lever Handle - This butterfly valve is designed for swimming pool, pond, irrigation, and other water applications. It features a blue lever handle. Its oval bolt holes are designed to meet ANSI class 150, DIN, and BS 4504 PNG specifications. If used in an HDPE piping system, flange spacers or chamfered flange adapters may be required. The 711 Series butterfly valve is sold as lever type only. For butterfly valves with actuation, gear operators or stem extensions, please refer to the 411 or 311 series.