This is a very quiet pond pump. It delivers water at a very good rate as well. Other than that, it's made very well with a good housing. The housing can be easily broken down to clean the impeller as well as the ring filter that's within. If you run it in pond that's loaded with fish, the filter cleaning will be more frequent. So, I basically modified the intake to run a separate filtration system before it enters the impeller. As for the exhaust, I added a PVC threaded adaptor to run a piping system for my aquaponics setup. It was easily threaded on, but you'll have to make sure that the threads do match up. Overall, this is worth it for something that delivers water very quietly and efficiently. It feels like it will last longer than my previous pumps that I have used before, but failure was due to bad filtration of muck.

There's a lot to like about this filter, and the two features I like best are the adjustable flow rate and the small footprint it takes up in the pond. I have a smaller pond, and I don't want a filter that it super visible and in the way of other visual features in the pond, so this one is really nice in that regard. The adjustable flow is really a must have if you have any type of waterfall or water feature where you're lifting water above the pond level. I like my fountain to have just the right amount of water flowing, and some pumps are nice size-wize, but have either a too weak or too strong of a flow to the fountain. This allows you to set it once and you're done, but if you make changes to your pond, you can easily increase or decrease flow. This pump also includes 3 outlet sizes of 3/4 inch, 1 inch or 1.2 inch, so the options are fairly robust. The filter is a bit small, but I put my pump in a mesh bag which helps with the filtering, but any way you look at it you'll need some time spent on pond maintenance regardless of pump chosen. This is a worthy pick.

I ordered both the 120GPH and the 800GPH for a Hydroponic system (Buckets and Pipes) I use and aerator and this pump to water 8 buckets with a timer. The 800 GPH pump moves a lot of water, the 120 moves plenty of water, and it is extremely quiet. The 800 makes a little bit of noise, but miniscule. The hose barbs that come with both pumps are not great, I put different ones on that thread in and adapt to 1" PEX. The pump has plenty of pressure, all of the jets have a nice spray and neither pump gets hot. Both pumps are currently set to run for 5 hours at the same time, so they both have the added benefit of being very low current draw. Both pumps also have very long chords preventing the need for extension chords which is also quite nice, especially with the gaggle of tubing involved in the hydroponics.As a fountain pump, these both have plenty of lift. I experimented with them for the vertical hydroponic towers and both lifted the water 6ft with no issue, however the 800 moved significantly more water allowing connection to multiple towers where the 120 was only good for one. I am pleasantly surprised how well both of these work and how easy they both are to clean. I have only had these for a short time, but the build quality seems fine, I feel these are both going to be fine for some time. Obviously, a little care cleaning, and checking them is required to make them last. So, If you are going to use one or both of these for a pond or for hydroponic gardening, you will be happy with them. I will follow up after 5 months of continuous use, but I don't believe there will be an issue.

So far this is a pretty decent pump that moves a lot of water. It doesn't make much noise at all and it seems like the plastic it's made from is fairly sturdy.What I like about this pump so far besides moving a lot of water, is the pump cover and impeller cover design require no screws to remove in order to service the pump. Other brands, one in particular I have always used for a couple decades now, requires 4+ screws to hold the impeller cover on the pump housing. That can make it a pain servicing at times if you're trying to get a sticking impeller going or some other issue and you have to remove the screws more than once every time you test the pump.With this, you gently squeeze the pump screen cover where it latches and remove it that way -- although time will tell how durable it will be to withstand multiple squeezing. Then, the impeller cover is designed to turn and "unscrew" from the built-in latches/ledges/lips that hold it in place. From there, you can remove the impeller and impeller shaft, etc. Just keep in mind which way it is oriented so it goes back into place correctly when you put it back together.One note of caution -- Like most impeller-driven pumps, they have a CERAMIC impeller shaft. It can be fragile if you're not slow and careful while servicing the pump. When you carefully take the impeller cover off and then get done servicing and go to put it back together -- REMOVE the impeller shaft and impeller entirely from the hole they go into if you haven't already. In the back of the hole inside the pump housing there is a teeny hole of a little rubber fitting that the impeller shaft goes into -- it's what holds one end of it in place. Get into some bright light or get a flashlight if you need to see down in there. Put the impeller shaft back in place first inside the pump housing. THEN carefully slide the impeller back over the shaft and into the pump housing. THEN it will be easier to line up the impeller cover with the other end of the impeller shaft sticking out.When I removed the impeller cover for the first time, it pulled the ceramic shaft out with it and left the impeller inside the housing. So when I was trying to put it back together, the cover didn't want to go on, and the end of the ceramic shaft that goes inside the housing was pressing into the edge of the rubber fitting instead, and I was risking breaking the shaft. I could not get the impeller and shaft lined up inside the pump. So I pulled everything out of the housing then put the impeller shaft back in first.I hope that makes sense.Another thing about this brand of pumps, like many new, foreign and unknown brands is, are there, or will there be replacement impellers and impeller covers for these? The brand I've used for decades has replacement parts for their pumps which is nice when I only need to replace them when they wear out every 5-10+ years, depending on the part (impeller cover or impeller). So I don't have to fork out the bigger money for a brand new pump every time parts wear out.Another thing I wonder about is, if this pump has an electrical failure in the water, will it hurt my fish or trip the GFCI outlet in time? I had a pump of a different brand a couple decades ago (before I got the other reliable pump brand I've been using solely up to this point and still do) that blew in the pond and bubbled up thick grey-black smoke out of the water. Thankfully I was there when it happened, thankfully it didn't hurt my pond animals, and thankfully I wasn't messing around in the water. I was able to unplug it quick. Needless to say I quit using that brand.This overall seems like a very good pump so far, running the filter on one of my small ponds, but time will tell how long it lasts and whether or not I can find and get any replacement parts for it if I need to. I may end up using this pump for irrigating my garden and orchard. I will update if anything drastic happens with this pump.