Powkoo Sponge Filter Replacement, 4-Pack Replacement Sponges For Aquarium Fish Tank Filter

Notes: replace the bio sponge every 5 to 6 months maximum to ensure the filtering effect and the production of beneficial tiny creatures It is important to replace the sponge filters regularly for optimal filter performance. what you get: 4 pcs x Powkoo replacement sponges for S 1 x Powkoo retail package bag