Size: 7.5 x 6.5cm/ 3.0" 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 or baby fish from being sucked into the filter.
Can be used again after cleaning, enhances biological filtration.
The material has great thickness, it is durable. Very suitable for using in freshwater and marine water. Good water permeability. Easy to install over the filter intake. For preventing small or baby fish from being sucked into the filter. Provides biological and chemical filtration and increase the oxygen solubility in aquarium and fish tank. Dense honeycomb shape makes it effective to avoid and reduce the death rate of fish.
Tips: 1. You can cut the size as you need. 2. A small rubber band can be used to close off bottom of sponge if strainer has openings on bottom. 3. Can be used again after cleaning.
