uxcell 6pcs Blue Black 2.6inch Dia Cylinder Aquarium PreFilter Sponge Filter Cartridges
Brand: uxcell
Color: Black Blue
Color: Blue, Black; Package Content: 6 x Filter Sponge; Material: Coarse Sponge; Net Weight: 51g
Size: 15 x 6.5cm/ 5.9" x 2.6"(L*D); Inner Hole Dia: 2cm/0.8"; Outer Dia: 6.5cm/ 2.6".
Easy to install over the filter intake.
For preventing small fish from being sucked into the filter.
Can be used again after cleaning, enhances biological filtration.