Cover your overflow box to protect your fish and invertebrates from entering your overflow, while preventing algae growth by blocking aquarium lighting.
|Item Code: AP7331. Two 6 inch black foam squares are included.|
|Cut to size with scissors. Leave about a 1/4″ or a little more around the edge for a snug fit. The foam is just above the water line. Do not submerge the foam as it is not intended to block or restrict water flow.|
|The edges are concealed when placed side-by-side. Installed a overflow box with a 1.5″ drain and dual 3/4″ returns.|