Seachem Laboratories Glass U Aquarium Airline Tube 10MM is backordered and will ship as soon as it is back in stock. Please email us for an ETA.
The 10 mm glass U Tube allows you to easily run airline (preferably silicone) for CO2 or for general air supply over the rim of the aquarium without bending or creasing. Made of strong clear glass, which minimizes visibility of tubing.