Eshopps released overflow boxes for your aquarium. For those of you that don’t want to drill your tank, or don’t want to hassle with it. “Quality overflow boxes feature bulkhead fittings for secure and convenient installation. Use these easy-to-install overflow boxes to transport aquarium water to under cabinet sumps, refugiums, or wet/dry filters. Gravity-feed system eliminates the need for complicated drilling or aquarium modifications.” Models range from 300GPH to 1600GPH. Starting at under $50.