Review on TetraPond Submersible Flat Filter Replacement by Claudia Green

I have a small pond and these replacement filters fit my filter. I use 1 pad for the first 6 months. I take it out of my pond filter to clean it. dirt gets in. Then in July I removed the filter mat and used the second one. Buying two packs is economical and makes it easy to swap out when needed. For me this is the best way to buy pond filters. I need 2 a year and order them in the winter and then get them when I need them.