The Fluval Spray Bar Kit is used to diffuse water throughout the aquarium, increasing surface agitation and improving oxygenation that is essential for a healthy aquarium. Key Features : Specifically designed for Fluval 07 and 06 performance canister filters Increases the amount of oxygen in your tank for healthier fish and plants Distributes water evenly for delicate aquascapes Eliminates dead spots in your aquarium Attaches to your filter outlet with hose adapter (all attachments included) Extendable from 15-30" (38-76 cm) Increases and decreases surface agitation depending on positioning Below surface: Place Spray Bar below the water to create gentle, consistent water movement Above surface: Place Spray Bar above the water in order to get the best surface agitation and oxygenation For use in freshwater and saltwater aquariums Included : Perforated tube with end cap (15"/30 cm) Perforated tube extension (15"/30 cm) Tube connector J connector Elbow Suction cups (x 4) Clips (x 4)