12VDC Solar Hot Water Pumps - Can handle temperatures up to 230F and Pressures up to 145PSI - With three-phase ECM brushless DC motor. FDA, REACH,CE, RoHS, ISO9001 certificated (3.0 GPM)

I needed to replace my old pump that was over 30 years old. Original model (El Cid) no longer available. At first it looked like I'd have to spend hundreds for an equivalent pump, but found this one as a great alternative. Their videos are short yet very helpful, explaining that the 3 meters of head pressure is actually more than adequate when working with a closed pressurized loop like this. My old system still has the original PV panel on the roof to run the pump with no additional sensors or switches. This panel may have originally been rated at 24V, but this new pump has built-in protection if the voltage is greater than 24V or less than 6V, so I thought it was worth a try before replacing the panel. It works great. No power lights unlike my old one, but it gently whirs/hums when powered so you know when it's working. The 1/2" fittings were the same as my old pump to replacement was little more than plug & play. I did have to make 2 cuts in a copper pipe due to space constraints, but this was easy with a hand pipe cutter & I used a single piece of flex mesh piping with a Shark Bite fitting on one end (already attached, although you can get separately). Very satisfied.

I replaced a larger pump on my solar hot water system with this little unit and it’s working great. Of course I have no way to know if I’ll get the years of use they say I will but so far it is very quiet and efficient. The price was good too. Very pleased so far.

Used it on the sluice box

Very easy to connect. Used to recirculate water through solar panels and holding tanks. Would be nice if there were a test mode to make sure unit worked before cutting and welding copper pipe to attach this one. Previous one never worked after connecting. Turned out unit was bad, this was purchased to replace.

Or should I say it runs and runs and runs like a champ! I use it with the recommended solar panel and together they work great. I'm using it to circulate water in a solar water heater I use while camping.

So far is working flawlessly. Sun comes up and on goes the pump, circulating hot (sometimes very hot) water through my solar water heating system. The solar panel suggested for it seems to be perfect. I'm very happy.

This is a very good buy for many reasons. As a brewer I can use this for a recirculation pump with out expending any extra $ on electricity with the larger 120v pumps. It rigs to a 120v to 12v converter easily and does the job just right.

The pump has been operating in my solar hot water system for the last 5 months and is working fine and is very silent.

Small. Fits in the palm of your hand. Didn't pump for me. Maybe for a medium fish aquarium but nothing more. Tried to pump through a small heater core in my boat cabin. Epic fail through 1/2" piping. I don't believe other reviews which I relied on. Can't return as it is past 30 days. Two thumbs down.