Bubble Magus 7” 150 Micron Sump Filter Bag/Sock

Bubble Magus Filter Bag/Socks are for use as a pre-filters in aquarium sumps and other similar applications. They have been designed to be attached to Bubble Magus Sump Filter Bag Holding Bracket?s for easy placing in the filter. Available in 4? and 7? diameters.