• Install at inlet of Hang-on Filter, Canister Filter, etc.
• Prevents fish and shrimp from being sucked into the filter.
• Functions as prefilter to remove large leaves or debris.
• Can be easily cleaned and reused.
• Stretchable
• Change sponge when it loses its elasticity.
Sizes (each pack contains 2 sponges):
• Small (up to 2cm diameter inlet)
• Medium (up to 3.5cm diameter inlet)