These mini pre filter sponges are great for small hang on back filters or very small power heads. This is a custom design we had made with a more coarse foam so it doesn't clog up instantly on filters. 

Intake hole: 0.5 an inch. 

Diameter: 1.25 inch

Length: 2.75 inch

Mini Pre Filter Sponge Coarse

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These mini pre filter sponges are great for small hang on back filters or very small power heads. This is a custom design we had made with a more coarse foam so it doesn't clog up instantly on filters. 

Intake hole: 0.5 an inch. 

Diameter: 1.25 inch

Length: 2.75 inch

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