If you search shurflo on here you will find lots of info on these. Pumping is what these pumps were designed for, so they can pump up hill no problem. Lots of guys on here use a temp controller on these to save battery and pump life, and to help avoid freezing. Set them to kick on like 35-40 degrees and shut off at 25 or so. There a lots of pictures of different setups on here. You will find that the DC pumps will outlast the AC pumps too. Like 4-5 times longer. The brushes wear out more quickly with the AC pumps. Also, if you have a recirc line coming off your tank back to the pump, this will keep the pump diaphragm wet and really help with higher vacuum.

Try this one. http://mapletrader.com/community/sho...hlight=shurflo

Good luck and enjoy...