Trigger Systems ATO Containers are a great match for any aquarium. The tall and narrow profile fits well in most stands, while the large capacity conveniently extends time between refills. Features Two x 0.25″ OD (outside diameter) hose ports Lid to prevent evaporation Opening for wires and hoses Made of 1/4″ thick acrylic to prevent bowing Rounded and polished top Made in the USA! Dimensions 5 Gallon - 6″ long x 14″ wide x 15″ tall 10 Gallon - 10″ long x 16″ wide x 15″ tall