High-grade synthetic filter floss. Efficiently traps loose particulate matter and acts as a support medium for beneficial bacteria. Completely inert-it will not affect water chemistry or pH-and unlike glass wool it is non-irritating, and lint free. Supplied in a seven-ounce bag-sufficient for numerous filter changes.
Additional ResourcesNo Additional Resources at the time.
Flinn Catalog/Reference Manual Page 830
Flinn Middle School Catalog/Reference Manual Page 538