LIMITED STOCK Suits all older Waterway 2" Diverter valves prior to 2004. All new diverter caps have the word ' BUTTRESS' stamped in the mould on the underside. New and old styles do not retrofit each other - the new thread is too tight and the extra thread length prevents a proper seal on older bodies. 95mm diameter, 12mm thread height, cap thread diameter - 70mm ID. The only style available in WHITE SCALLOPED with older 'V' thread.