Circulation Pump DC Driven 5.3 GPM | Johnson Pump 10-24503-03 5.3 GPM DC Driven Circulation Pump | Johnson Pump 10-24503-03 SPX Flow Johnson Pump CM30P7-1 model 12 volt centrifugal pump rated at 5.3 gpm with 5/8 inch ports is suitable for fresh water, salt water, & ethylene glycol circulation. Johnson Pump CM30 circulation pump CM30P7-1 series 12 volt DC operation Provides 5.3 GPM flow rate with low current consumption 5/8 in. inlet and outlet hose connections Magnetic drive pump's leak proof design eliminates the need for shaft seal Pumps up to 60% glycol mixture Runs dry without damaging pump Capable of handling temperatures from -40 degrees to 200+ degrees Fahrenheit Replacement impeller and shaft kit P/N 09-46551 6.97 in. length x 2.68 in. width x 3.35 height CE marked ISO 8846 – ignition protected against surrounding flammable gases