This filter sock is designed specifically for Phosphate Rx dosing, and will trap the flocculant in the system within two hours. 10 microns or greater will be trapped within, resulting in a clear tank in a very short time span.
Install the sock in your sump to catch the water draining from the display tank, dose your tank with Phosphate Rx in the skimmer section, and in a few hours remove the sock and clean it thoroughly for next time since these filter socks are reusable. Turn sock inside-out and rinse with a garden hose. For best results use a high-pressure water nozzle. Rinsing should be performed after each use.
4" sock, 11" length.
7" sock, 16" length.
10 micron filter sock.