Innovative Marine 200 Micron Felt Filter Sock w/ Plastic Ring [4 Inch] Snail and let this 3-in-1

and let this 3-in-1

With strong flow and good nutrient balance

Control XS or Control 4) and does not require any additional power source

Engineered

Innovative Marine 200 Micron Felt Filter Sock w/ Plastic Ring [4 Inch] Snail and let this 3-in-1Micron Filter Socks Instantly improve your water quality with our pre rinsed 200 micron filter socks. These highly durable mechanical filters help trap uneaten food, free floating particulate matter, micro bubbles, and even dust from your aquarium. Pre molded with internal plastic handles for easy servicing and double stitched for maximum reliability, micron socks are truly the BEST upgrade to your filter sump for polishing water. The result, a