12VDC Solar Hot Water Pumps - Can handle Temperatures up to 230F and Pressures of up to 145 PSI (3.0 GPM)

I use the pump to move ~140F degree (~60C) weater in a pressurized system that varies from 10 psi to 75 psi. The pump operates flawlessly. I have it mounted in a vertical orientation (inlet on top, outlet pointing down) which works well. The pump does not like air bubbles and will cavitate (no work is done, e.g. no flow) if there is any air in the system. The pump uses a very low amount of current so I can run it off my solar batteries when the grid is down (happens frequently during the winter). The pump is used to heat my hot tub using a heat exchanger. It works perfect. The life span for me is about 5 years of running a few hours a day. I just had to replace it due to a leak that shorted the control board in the pump housing. The pump gave excellent service for those 5 years.

Everything presented was accurate, and when I had an issue with the pump the customer service was excellent. It's nice to do business with a company like this. I highly recommend them.

Ordered in hopes it had enough lift but sad to say it did not. Thought they may be strong enough, but no luck. No fault of the pump. So had to return them