S5-5PV-SS - 2.2 GPM - Food Grade - 12V Solar Hot Water Pump - Can be run by a 5W solar panel - Automotive Electric Fuel Pumps - Amazon. to my DIY solar pool water heater and after pushing water through 100 feet of pipe the measured flow was just under a gallon a minute with a small 5 watt solar cell. I ordered
Amazon: S5-5PV/SS - 2.2 GPM - Food Grade - 12V Solar Hot Water Pump - Can be run by a 5W solar panel: Home Improvement. a hot water return loop and this pump is constantly circulating cooled off water back into the water heater so I don't have to run my kitchen faucet for 3 minutes to get hot water at the tap.
2pcs Brass Couplers. 1pcs 12V water pump. Hose size: inner diameter in 8mm-10mm would fit. Max Flow Rate: 8L/Min(2.1GPM). Maxcirculating wa. The Topsflo TS5 15PV pump can be connected directly to a 15W photovoltaic panel or run off an alternative 12V power source like a wall wart. Brass 1/2" NPT male fitting