WEAVERBIRD 4PCS Pre-Filter Foam Sponge Roll Aquarium Filter Intake Cover for Aquarium Fish Tank, Large
- Enhance biological filtration: These pre-filter sponges could help to trap particles and debris,and prolong the life of your filter media,provide efficient water flow with less clogging for long lasting filtration.
- Dimension: Approx. 8.0cm*4cm/3.15 x 1.57inch cylinder, the inside hole diameter is 2cm/0.79 inch, please note these foam are pre-filter sponges,so only have single hole.
- High quality material: These sponges are made from the top-quality filtration foam, BPA free and safe to your fish,no harm to water PH quality, good for freshwater and saltwater environments.