Goplus 2642 GPH Outdoor Pond Filter - High Capacity Water Pump for Koi Fish Ponds, Water Gardens & Backyard Fountains - Durable & Energy Efficient

I have to say this has proven to be a great filter over the past week and a half. I have used exterior pressure filters before and I’ve always went with the pricier manufacturers. I took a chance in this one and so far I’m impressed. The unit is large, and the design seems to be a good one. Bio balls in the bottom - and yes they were provided in the unit. Concentric sponges of various density check. A good size uv lamp - 13 watts not 9 - that was a plus. The smaller the lamp the less work it does clearing the water. The cleaning system is simplicity itself and works super well. Received all the fittings and connections. After a week our water is crystal clear. Crystal - no exaggerations and we had an issue with our capstones were shake and they were also dirty when laid - and that was an over sure in my part. We had a heavy rain which washed all the dirt into my new pond and the water was a mess. Thus filter took care of it but it did take several days so be patient!!! No leaks so far. I do recommend you put clamps on all hose connections when you complete the installation and use good quality hoses - nothing that will compress or break easily. Purchase hoses specifically designed for a pond and prevent a potential mishap! Recommended.