The Glass Lily Pipe Inflow 17mm is a unique aquarium accessory that helps to create a gentle, flowing water current in your tank. This lily pipe features a curved, 17mm diameter inlet, which creates a subtle and calming water flow. The inlet is connected to a small, clear glass tube which can be placed in the tank directly, or connected to tubing for a more creative set up. This lily pipe also boasts an adjustable flow rate, so you can customize the flow to suit the needs of your aquarium inhabitants.