Acrylic Filter Sock Holder Bracket for 4" Socks Marine Sump Tank

You are purchasing a high quality acrylic filter sock holder. This filter sock holder will hold all filter socks with a 4" diameter ring. These quality filter sock holders are made from thick acrylic, and will fit sump tanks with a glass size of 12mm or less. This filter sock holder has adjustable screws to allow the height of the filter sock holder to be adjusted.