Grundfos 96806133 Dielectric Isolation Bronze Valve Kit is compatible with Grundfos UP Series Circulator Pumps. This kit includes (2) rotating flanges, (2) lever handle ball valves, (2) dielectric sleeves, (2) EPDM gaskets and (4) bolts with nuts. Features NPT end connections and a 1-1/2" fitting size. The maximum pressure is 150 PSI and the maximum temperature is 230°. Constructed of durable bronze material.