Little Giant Circulator Pumps have been specifically developed for applications in solar heating, heat exchange units and open or closed commercial and domestic hot water recirculating systems. The pump features dual fan cooling for increased motor life, balanced drive magnet which prevents premature motor wear and oversized bearing oilers for extended bearing life. The non-self priming, inline use circulator units are capable of pumping liquids at temperatures up to 212 degrees F., 100 degrees C., and withstanding line pressures up to 150 PSIG. The circulator pump motor can be easily removed without removing entire unit after installation. Ryton impeller, bronze volute, stainless steel shaft and magnet separator and silicon O-ring.