Laguna Max-Flo 4200 Waterfall & Filter Pump, PT-352

Very happy with this pump.

Pros:

Quiet: I hear my air pump (which I consider to be very quiet) over the sound of this water pump.

Efficient: I am running this pump at 9' of head pressure and my kill-o-watt shows that it's drawing 155 watts. I believe it is pushing around 2,000 Gallons Per Hour at this head height.

Price: I bought 2 of these a few months ago for $200 each (looks like prices have gone up to $220 as of this review). Even at $220, this is still cheaper than pumps that have similar specs (PondMaster Pro Hy-Drive or Sicce Syncra HF).

No Seals: Unlike direct drive centrifugal (external pumps) you don't have to worry about seals failing with this pump.

Quality: The pump feels and looks to be well made.

Cons:

The "fast coupling" attachment is a bit cumbersome to use.

I had a heck of a time trying to get my 1.5" hose onto the barbed fitting.

Using the Laguna Max Flo 4200 and a Laguna Max Flo 2400 for my 300 gallon aquarium with a 125 sump. The aquarium is in my office and the pumps are extremely quiet. I used flexible hose to connect them to the plumbing. No vibration, no sound. At 5' of head, I'm assuming I'm getting 3,000 gph from the 4200.

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Laguna is a brand in pumps I have worked with for quite some years now. The new "cage" style pumps are indeed nice in regard to handling solid waste appropriately in your pond meaning the pumps do well at not getting clogged up by debris. These pumps are also powerful and use less electricity to move water than most other push pumps do. However, finding the appropriate fittings (such as quick connects) is an inconvenience because one: they are hard to find, and two: it is very difficult to know what "size" you really need for hose size adaptation, etc. once you do locate them. Also, in many applications I have found getting hosing onto the fittings to be a real bear as a lot of heat or Vasoline is needed to complete this tight task! Nevertheless, it's your choice. If you want to try Laguna brand pumps, order them easily and much cheaper through AMAZON.COM. Nowadays you won't find these products at any retail operation.

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It keeps my pond very clear and clean. I used to clean my motor with sponge sleeve at least 2x a week this summer. This filter is keeping the water clearer. I also love the waterfall it creates.

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As soon as I hooked this pump up to my 150gal filter systems I knew it could do the job. It not only ran on less juice than My previous German pump but pumped a higher volume of water. The slots on the pump housing however were narrower so it has plugged up a couple of times which amounts to a higher rate of plug-ups over time. I had hoped for a less blocking prone pump but I guess no one pump does it all. The German pump I had before lasted 7 years so it will be quit some time before I can rate this pumps longetivity but I am hopeful because the build quality seems good. In short I think this pump is a great performer for the price and I just hope it holds up over the long haul.....

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