Filter Grid Grids Square Cut Egg Crate Marine Frags Vivarium Filter 690mm-402mm

Filter Grids Square Cut Grid Egg Crate Marine Coral Frags Reef Aquarium Filter. These quality polypropylene FDA approved food grade filter grids, specifically made for aquatic use are ( 1/2" - 12.5mm thick) and each square is ( 5/8" - 18mm).

eBay