Tideline Overflow BoxSleek and elegant overflow box for your aquarium. Made of high quality acrylic, the Tideline Overflow Box is durable and looks great! The ultra slim internal overflow box blends seamlessly in to your aquarium background. The connected external overflow box accommodates three 1 drains* that allows you to either utilize a quiet Bean Animal Overflow Drain or any style drain of your choice.*bulkheads & plumbing sold separately Features Full acrylic