American PlumberW20CLA Whole House Sediment Filter Cartridge 20 Micron Well Pump Irrigation (10)

Used to filter water.

Just what I ordered!

Came early and was as described at a good price.

Filter cleared up our deep well water.

Works great

No way too small

This is what my plumber uses. Buying them in bulk also makes them quite reasonable. Another reviewer mentioned the 5 micro type being less expensive and getting more sediment - according to my plumber they also tend to put a greater load on your well pump which may decrease its longevity.