Seachem Laboratories Glass U Aquarium Airline Tube, Clear, 20 mm

Running airline over the rim of your aquarium can be a fussy business, with tubing that wants to bend, crease, and pinch right where you need flow. The Seachem Laboratories Glass U Aquarium Airline Tube in clear solves that with a smooth, rigid U-shaped path that carries your line over the tank edge cleanly. It is made of strong clear glass, which keeps the tubing discreet so the focus stays on your aquascape.

• Lets you run airline neatly over the rim of the aquarium without bending or creasing the tube.
• Works for CO2 delivery or for general air supply, so it fits a range of setups.
• Made of strong clear glass that holds its shape and resists the kinks that plague soft tubing.
• The clear glass minimizes the visibility of tubing for a cleaner look in planted and display tanks.
• Seachem suggests pairing it with silicone airline as the preferred line to feed through.
• A smooth U-bend keeps flow steady where a folded soft tube would restrict it.
• Low-profile design suits hobbyists who want their equipment to disappear into the scape.
• One tube per pack, ready to fit over your tank rim.
• A tidy fix for anyone whose airline keeps creasing at the edge of the aquarium.
• Built for everyday aquarium use, from CO2 injection lines to simple aeration.

If you have ever fought with tubing that crimps the moment it clears the tank wall, this clear glass U tube is a clean, lasting answer. It guides your line over the rim in one graceful curve, keeps CO2 or air moving freely, and stays nearly invisible against the glass. For aquarists who care how their setup looks as much as how it works, it is a small detail that makes a real difference. Pair it with silicone airline as Seachem recommends and enjoy a neater, better-flowing tank.