Our 4" High-Flow Filter Media Cups will replace all those filter socks you have hanging around. Made out of a BPA free LDPE our High-Flow Filter Media Cups are a flexible 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. The opaque color will easily hide any blemishes that may occur from changing out filter media.
Directions: Wipe cup with distilled 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.
4" Dimensions: 6in Height and 4in Diameter
High Flow Cup Material: 100% Virgin BPA free flexible LDPE