Hot Water Pumps

We need to supply 2-kinds of pumps to U.S.A. for solar water heating uses :1. Both pumps are 110 Volt, 60 Hz electric power ;2. One is bronze, the other is cast iron. We could use either bronze or stainless steel for both pumps.3. The smaller pump should have a maximum flow rate of about 11 gallons per minute (GPM) or 2.7 m3/H and a maximum head of about 10 feet or 3.0 meters.4. The larger pump must have a maximum head of about 35 feet or 10.7 meters, and a maximum flow rate of about 10 GPM or 2.3 m3/H.