The portable Hydroflush fill and flush pump cart from Caleffi North America is preassembled and leak-tested for a safe, quick and clean way to fill and flush solar, geothermal and hydronic heating systems. Features include a welded steel chassis, powder-coated frame, stainless steel filter and 10-inch rubber tires. The Grundfos CM1-3 stainless steel pump with 1-15 gpm flow handles water, glycol and hydronic cleaning fluids. Maximum tank medium temperature is 150 degrees F. The 0.5 hp pump delivers 0-55 psi and is rated at 7.6 amps at 115 volts AC. 414/238-2360; www.caleffi.com.