Thrush has announced its RC and RCB circulator pumps to compliment its line of circulators, end suction, vertical in-line and boiler manifold pumps. These units feature low pressure FT HD, high flow gpm, an adjustable motor cradle, stainless steel shaft, enclosed brass impellers, brass acorn impeller nut, mechanical water seal, Ni-Resist or ceramic seal with full o-ring, cartridge bearing assembly sleeve bearings, a heavy cast iron bracket, and a water slinger to prevent seal vapor or leakage from contaminating bearings. Thrush Company, Inc. Circle 6.