Up Aqua Outflow Lily Pipe – 13 mm -Perfect for use with external filters -Less obtrusive than conventional inflow pipes -Included suction cup allows easy and secure attachment Up Aqua’s Outflow Lily Pipe is perfect for use with external filters. The clear glass is less obtrusive than conventional return pipes, creating a more natural looking environment for the most pristine and elegant aquascapes. The included suction cup allows easy and secure attachment to aquarium. 13 mm fits 1/2″ tubing
