Reusable filter media for sand filter
Polysphere is a new alternative to sand and glass.
Reusable for 3 to 5 years
Ultra lightweight therefore easy to use
Superior filter results
You can simply wash the Polysphere balls in the washing machine every three weeks.
Without any washing detergent or fabric softener.
You can fill the sand filter twice with just 1 small box.
You cannot use the backwash function on the filter.