Dimension: 7x4cm/2.8” x1.7”, the inside hole diameter is 2cm/0.8”; Please check the size you need carefully before place order. The sponge's inner diameter accommodates filter intake within 0.8-1 inches (20–25.4 mm) due to its elastic properties.
Improve Filtration:filter waste and stop the waste go into power head, Does a good job in catching flake fish foods, plants and any other large particles floating in the water keeping the tank filter and last longer between cleanings.
Protect your filter power head and prevent small fish or shrimp, and snails from getting suck into the filter,power heads or canister filters by simply putting a pc of this pre-filter sponge over the intake.
Easy to Install and Maintain.absorbs odors and discoloration, the material holds up well to being rinsed and reused and allows great water flow.
Replace or clean the filter inlet cover sponge every two weeks or sooner for optimal performance.
