Danner Manufacturing, Inc., Supreme 950 GPH Hydro-Mag, Recirculating Water & Air Pump with Venturi, 40129

Bought this to replace the exact model pump that had lasted 8+ years. May have lasted longer, got it as part of a used tank and don't know how long it had run previously. Plug and play. Very heavy duty pump.One thing I learned when replacing the pump - also purchased a multipurpose U return pipe with a siphon breaker hole. Previously during a power outage the upper tank back-siphoned and overflowed the lower tank. All good for at least 8+ years.And the older pump didn't fail completely - the motor was still working fine, probably could have bought replacement parts (impeller and housing) and got it running again, but needed a certain solution quick so didn't try that route.

I use these pumps on our quarantine tanks for our Koi. They work great for a110 gallon tank with 18” rise from bottom of tank to filter area. They last about 3-5 years for me.

Turns out to be the same pump which I bought 12 years ago. The original ran day in day out for all that time and finally developed a few chips on the impeller probably from stuff in the water. This model has the venturi feature which I did not utilize because I was happy with the original setup (attached to a box filtration and then driving a small fountain on my 300 gallon pond.) I expect I'll get years of use from this new one, and I was able to buy replacement parts for the original so now I have a spare. Cheaper pumps are not worth the money.

This is a premium pump. I am replacing one in the fountain that runs 24-7. It has run well for the last TWENTY years. Finally bearings went bad. This new one is quite powerful and heavily built.

This pump has a small washer on the propeller that wears out pretty quickly. Once it does, it breaks off and the pump just completely stops working. This one shoddy part makes the whole pump worthless junk. DO NOT BUY!

I have 2 of these pumps, and one of them is a backup, which I haven't needed yet. These pumps work better as a sub pump than inline. If you decide to use the pump as an inline, make sure you have filtration setup. The water inlet inside the pump cover has extremely small slits in it and gets clogged easily. The noise level dropped a start because the pump can still be heard while submerged, and as an inline pump it makes a ton of noise in general. Overall, I recommend these pumps.

Not much to say except it is a workhorse and does what it needs to do for my cold plunge setup. Definitely recommend this.

Works pumping fine then would stop pumping then start right back up I’m keeping an eye on this no timer is being used