SPONGES WITH PRE-FILTER FISH TANK FILTER COVER PROTECTIVE SLEEVES MADE OF INLET SPONGE SPONGE SLEEVES FOR TANK FILTER COVER FOR AQUARIUM SPONGES WITH PRE-FILTER These sponges can be used to connect the filter to prevent contaminants from entering the filter cylinder. Essential filter sponge sleeve for better extended filter life. This sponge protective cover set is widely used in aquariums and aquariums. Prevent young fish and shrimp from being sucked into the filter tank. Ensures efficient water flow with less clogging for long-lasting filtration. LIST OF PACKAGES 5 x sponges with pre-filter FISH TANK FILTER COVER This item is a set of sponges with pre-filter. It can be used to secure the water inlet to the filter. This sponge provides efficient water flow with less clogging for long-lasting filtration. Easy to use, suitable for professional and personal use. PROTECTIVE SLEEVES MADE OF INLET SPONGE Color: black. Material: sponge. Size: ok. 8,7 x 5 x 5 cm / 3,42 x 1,97 x 1,97 inches. Hole diameter: ok. 2 cm / 0,78 in. These sponges can be used to connect the filter to prevent contaminants from entering the filter cylinder. Essential filter sponge sleeve for better extended filter life. This sponge protective cover set is widely used in aquariums and aquariums. Prevent young fish and shrimp from being sucked into the filter tank. Ensures efficient water flow with less clogging for long-lasting filtration.