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Glass U-Tube (20mm wide) for Airline/CO2 Tubing

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The 20 mm wide Seachem Glass U-Tube is a convenient addition to the arsenal of any aquarist. The incredibly sturdy and durable glass u-tube allows aquarium owners to easily run an airline for CO2 or conventional air supply over the rim of an aquarium to ensure that there are no potentially damaging kinks, bends or creases in the hose. The strong clear glasses helps to minimize the visibility of the tubing and is well suited for most rimless and standard aquarium rims. Compatible with 6 mm (1/4") - Standard Airline Tubing.