This 4in1 Multifunctional Sponge suitable for use of Sobo Canister External Filter SF-1200SF & SF-1500F.
- High Quality Wither Filter Wool
- Super Activated Carbon Sponge
- Ammonia Reduction Filter Sponge
- Phosphate Reduction Filter Sponge
To ensure the quality of filtration, regular cleaning and subsequent replacement is recommended for every 60 days.
Sobo Filter Sponge FM-20