Bubble Magus Reef Sump Filter Soak
4'' Inch DIA Filter Soak
Round Ring Neck
150 Micron
Approx ; 16 " Inch Long.
Simple, effective sock is just that a cloth bag where water falls into the top via a rigid or flexible pipe
from the main tank above and dirt particles are trapped in the fine material.
Very effective and good for polishing water with no other form of mechanical filtration.