hi i wanna know waht difference makes the MEZ electric waterpump or the CSR electric waterpump, the flow rate of the MEZ at 12 volts is 55 gpm, and the flow rate of the CSR at 12 volts is 35 gpm, so i don't know which buy it? please answer this question!!!!

 

I don't know the answer to your question but I have had a CSR for 5+ years....works good
No exp with any mez products. Always went with CSR for contengincy

 

I'm guessing it has to do with the impellar and speed / power the motors make. I have a meizer for the last year or so, Little over 8k miles probably, no issues.