Yosoo Solar DC 12V Hot Water Circulation Pump Brushless Motor Water Pump 3M Low Noise csf (DC 12V) The pump is perfect for the family home thermal solar systems or any circulation pump application Horizontal inlet and outlet with rotatable cap, easy installation. Max operating temperature up to 100C with External circulating water flow. Super long working life.low consumption & low noise. Amphibious design.Submersible installation and entirely waterproof.