Features:

Compatible with SUNSUN HW-303B/703B, Polar Aurora 370gph canister filters.

4 pcs of sponge bio filter pads (1xCoarse, 2xMedium, 1xFine): trap most visible debris particles without restricting water flow. (Reusable after rinsed)

12 pcs of white floss pads: Filter out fine particles providing crystal clear water.

Provides both mechanical and biological filtration

Includes:

1x coarse (Blue)

2x medium (Green)

1x fine (Black)

12x floss filter pads (White)

Tips for Usage and Maintenance:

Maintenance of Sponges:

The sponge will need to be rinsed every time it becomes dirty, about once every 1 to 4 weeks.
After 6 to 12 months’ usage, the micro holes of sponge is gradually clogged by the tiny debris. So it is also recommended to replace the sponge once 6 to 12 months or when the sponge gets worn out.