EasyPro Pond ProductsSonata WF18E ECO-Series Waterfall Filter, for Natural Biological Filtration, is a Patented, Tool-Free System Ideal for Koi Ponds and Water Gardens Up to 1,800 Gallons

It ended up being bigger than I had in my mind but it's a nice size for my application. It's very sturdy and will last a long time.

Works great for my waterfall in my small pondEasy to clean as well

well built. Why must the customer do a second order and pay AGAIN to have it shipped to get the LID for this waterfall filter? Shame the manufacturer has seen it as another way to get more money from the customer. Would have been 5 stars to have marketed the filter box AND lid together as a complete unit.

This will be an easy way to help support a healthy pond.

Seems very well built and heavy duty to last a long time. Media bag is extra large and comes filled with foam bio media. Super fast shipping and delivery.

Haven't installed it yet, but I've used products exactly like this before. It will work fine if I don't screw up the liner on the waterfall. I've no experience with the foam type media for filtering. I've used lava rock and Bio Balls in the past.

We have this installed at our waterfalls. We had a different type of filter which was not doingg the job. I am pleased with this unit. The Water in my small Koi pond is nice and clear. Thw Koi pond holds around 800 gallons. This EasyPro waterfall filter was a great purchase.

Much better than my previous waterfall that leaked because the lip was a separate piece that was screwed on. This waterfall is molded seamlessly so it will never leak at the spillway again.The only problem is, it came with the bulkhead already affixed and I was retro-fitting it to my existing system. There was no way to screw it on to my existing pipe. I had to saw off the new bulkhead as not to have to replace my existing plumbing. It worked out but the hole was not very smooth after removing the pre-attached bulkhead. They should ship it separately and let the customer affix it according to our need.