1 x Set DIY Course/Fine Aquarium Fish Tank Filter/Sponge Foam Pond 18''x12''
Aquarium Or Pond. The Sponge Can Cut To The Size Needed. - DIY Fine Blue Foam Sheet Grade Foam 45 ppi. - DIY Course Blue Sheet Grade Foam 10 ppi. - DIY Course Blue Sheet Grade Foam 20 ppi. DIY Foams Sheets.