Check the listing for details. March Pump 0130-0182-0100 Model AC-3M-MD Magnetic Drive Pump, 115 volt, 510 GPH. Condition: New. Listed at 272.86 USD. March pump model number AC-3M-MD Max Flow: 510 Gallons Per Minute 115 volt 60 Hz AC operation Standard base model 3/4 in. FPT inlet 1/2 in. MPT 20 1/2 ft. max head Designed for marine air conditioning circulation applications Air cooled motor Pump is not self-priming Must be installed below the waterline Ignition proof design for use in marine applications Magnetically driven with no shaft seal Carbon Impeller bushing and stainless steel shaft allows pump to run dry for a short period before suffering damage 50 PSI maximum internal pressure 190 degrees Fahrenheit maximum liquid temperature 7 lbs.March pump model number AC-3M-MD Max Flow: 510 Gallons Per Minute 115 volt 60 Hz AC operation Standard base model 3/4 in. FPT inlet 1/2 in. MPT 20 1/2 ft. max head Designed for marine air conditioning circulation applications Air cooled motor Pump is not self-priming Must be installed below the waterline Ignition proof design for use in marine applications Magnetically driven with no shaft seal Carbon Impeller bushing and stainless steel shaft allows pump to run dry for a short period before suffering damage 50 PSI maximum internal pressure 190 degrees Fahrenheit maximum liquid temperature 7 lbs.