Juwel poly pad's are used to catch the coarse particles in the water.
As a mechanical pre-filter, it helps to prevent rapid clogging, this also means that you extend the service life between filter cleanings.
Juwel poly pad's are made of fine polyester material and are suitable for use in both saltwater and freshwater aquariums.
The package contains 5 poly pad's sheets.
JUWEL COMPACT FINE FILTERWATER STR. L