Our 7" Filter Media Cup will replace all those filter socks you have hanging around. Made out of a BPA free Polypropylene, this 4" Filter Media Cup is a solid one piece design, that holds any filter media. The round design allows the Cup to slide into place, regardless of which "side" slides in first.
Directions: Wipe cup with vinegar, then simply place Filter Media Cup into your filter tray, and fill with desired filter media. To clean just replace your filter media. No rinsing necessary.
Dimensions: 8 1/2" Height and 7 1/2" Diameter