This black polycarbonate lid fits the shape of the internal vertical overflow boxes in Planet Aquarium tanks. The exact measurement of this lid is 13 3/8" long by 6.5" wide. It's 1/4" thick, and will not warp like acrylic does. A customer ordered this lid and supplied the pictures of it installed, and they added those little feet you see. Those feet are not included.
When I ship overflow lids, the protective film will be on both sides. Remove this film and put it into place. The benefit of the lid:
- No algae grows inside the overflow box
- Less algae in the overflow teeth
- Keep livestock (fish and snails) out of the overflow area
- Bags floating during acclimation can't obstruct the teeth because the lid acts like a bumper, holding the bags 1/2" away from the gaps