Extend the intake or discharge of the API/Rena Filstar deeper into your tank. Works best on newer versions of the API Filstar with the 2 piece outlet and tapered inlet tube. If you have a shallow water environment extending the discharge deeper into the tank is a must. NOTE: Outlet sprayer will not fit unless adapted.
Originally made for use with the Rena Fountain Head C6015. Each piece is 3 inches long. Works with many other Rena and API Aquarium Items. Dark Blue color is ideal for fountains and as inlet and/or extension for many Rena OEM and other brands of fountain/pond/utility pumps and filters. Also can be glued with silicone or PVC glue for tight fit if needed.