Aquatop MaxFlow Submersible Aquarium Pump 237 GPH Adjustable Flow, for Fish Tanks, sumps and Statuary, SWP-820

This is the perfect replacement for the original pump that finally gave up after several years of continuous usage. Very fair price too.

I have owned several pumps that are in this series, but this is the largest pump that I won. Thus far is has worked very well in my reef aquarium. I was somewhat surprised by the size of the outlet port. I was expecting 3/4", but it is larger. It appears that the instructions have the inlet and outlet dimensions switched. None-the-less, I was able to use adapters to connect it o 3/4" PVC plumbing albeit with increased backpressure. I have two Aquatop pumps that are a couple of years old and continue to work well (475 g/h). The 997 g/h model I had failed presumably because of bad bearings. Thus, I am watching the durability of this pump, but thus far, no performance issues and the price was excellent.

Excellent filter for a small copper fountain. It was very easy to pop out the broken one and replace it with this new filter. Worked beautifully immediately.

The pump does pump water quietly. The accessories that come with it don't fit it at all. It is like they added random pieces they found on the floor in with this pump (I had to return one because the first one wasn't working, and the 2nd came with the same mis-fit pieces). The size is small which is nice for what I was using it for. I would not recommend this product because all of the pieces are not correct for it, or they are so lose that the hose falls off constantly.

Works as it should and moves a fairly decent amount of water for its size but can get noisy with higher head pressures. Overall a solid pump for the money.

I like the pump. It does exactly as promised. Depending on how you connect it and plumb, it can move alot of water.Relatively quiet yet it is rather large. They added a large foam pre-filter and housing.You need a little plumbing knowledge to hook up, but I found it easy.I use to operate a Nitrate Bio-Reactor in a 72 Gallon Bowfront Saltwater Reef Aquarium.I will be transferring this pump to a Koi Pond this Spring.Excellent product.

Much better than original pump that came with reactor. Only problem I had was - pump got clogged with sand. Lol I have engineer goby that kept covering the pump with sand. I fix this by placing the pump in small food container inside of aquarium. Now works great!

This helpful little pump works as advertised.It's about the size of two ice cubes, consumes just five watts, and runs almost silently (it's quieter than my canister filter or air pump.). The included plastic ball valve and positionable diverter allow for precisely directed water movement. I'm running it 24/7 at two thirds its full 95 gph flow to gently circulate a four foot long, 65 gallon tank with live plants and discus fish.My only improvement to this product would be to make it black instead of gray, so it could be even less visible in the fish tank.For around ten bucks I'm very well pleased with it.

Excelente y de buen tamaño funciona muy bien y silencioso lo recomiendo ampliamente

Good flow and meet my requirement, good deal for the price I pay. Why pay for name brand when this one can do the same job.

This is a fantastic pump and operates very quietly. The product quality and fitment seems to be very high. It comes with a few different fittings and ends, along with a venturi air injector to add bubbles to the stream if you prefer. I have mine operating at 2.5' of head and I barely see any drop in flow performance. I am very happy with this product.

The rubber suction cup holder was cracked. It was to complicated to return the whole pump. It is a back up pump so no big deal. I whould not buy my main pump through Amazon I would go to a store in my area and pay a few more dollars. No instructions in box.

This pump is quiet. I will probably add a rubber mat below to avoid all possible sound because I used it with an in-line mount instead of submersible. I used it to feed my chiller of my reef tank. The flow is good, it is quiet enough with just a little bit of vibration. The only problem was the fitting with my 3/4" flexible pipe. The pipe was probably pulling on one side of the connector so I had a leak at the inlet and outlet. It was small like 1 drop every 20 seconds but that was no good. I added 1 very small O-ring just before adding the connector and it works well now.