Material: The filter sponges are made from sponge, durable and harmless to water and fish, provides efficient water flow with less clogging for long lasting filtration. Widely Used: Suitable for fish tank and aquarium, protect small fish and shrimp from getting sucked into the filter intake, it is good for their healthy growth. Features: High density design, prevent fine debris or particular matter into filter, improved filtering water effect, prevent young fish and shrimp from being sucked into the filter tank. Easy To Use: Can be quickly and easily attached to the fish tank intake tube stem, just cover directly on the water inlet of your filter, good for freshwater and fish tank environments. Package Contenct: 8 Pieces fish tankpre sponge, enough for your use. Size: height 8 cm, diameter 4 cm, inner hole diameter 2 cm.
eBay