Fluval Sea CP4 Circulation Pumps spacesaving and innovative design provides many outstanding benefits: it minimizes tank intrusion, improves energy efficiency, and creates a smooth broad stream of ocean-like current.Unlike other pumps, this efficient circulation pump broadcasts output to assist corals with a gentle, indirect current.Key Features :Simulates natural reef currentsAdjustable flow directionExceptional hydraulic performance with the lowest energy consumption/LPH ratioSuper quiet compared to most modelsSafe to use with timer system (will not cause pump failure unlike many competitive modelsSecure, flexible aquarium mountingCompact, efficient, easy maintenanceGentle, even flow compared to many competitorsSuper compact compared to equivalent models