TetraPond Replacement Pre-Filter Foam, For Use in Tetra Water Garden Pump, 1-inch diameter, Model Number: 46798190172

I have been using these filters for a few years now. The price is fantastic and they fit my filters. I have 3 different filters I change depending on the season. These fit all three of them. One issue I had was with an older filter pump that had a hole at the end of the filter pump intake tube. I used fishing line and threaded it through the filter cartridge closing the end, preventing the tadpoles from getting sucked in. The filters have changed since I bought them last year. The mesh in the filter has slightly larger holes now. It makes cleaning easier but does not pick up smaller particles like it used to. While this can be a problem at times, it works good in the fall with all of the falling leaves.

I modified this filter to fit a smaller pump. It is working perfectly to keep debris out of the pump.

The foam is much bigger and more coarse than expected, and the shrimp can swim into it, but it works well to keep the baby shrimp from getting sucked into the intake tube for the filter in our 55 gallon tank. I had trouble finding a sponge cover that would fit over the intake tube, and this worked well.

This product was a perfect fit for my pond pump. Very happy with how clear my pond is

Don’t buy for shrimps would be good for small fish