- Complete set of lily inlet and outlet pipes, designed for nano and mini aquariums - Made of borosilicate glass, with transparent and durable acrylic parts - Includes adjustable skimmer that removes surface debris and regulates water flow - 10 to 13 mm glass adapter for connecting to hoses with 12 mm inner diameter - Spring brush included to facilitate internal cleaning of the pipes - Provides efficient circulation and keeps aquarium water clean - Easy installation and compatible with most filters for small aquariums - Ideal for improving water quality and the well-being of fish in home aquariums