Crystal-clear pond water and the best possible conditions for plant and animal life are assured in a natural way through the 4-step biomechanical process of the LOOP filter system. Water is all-automatically pumped through several filter layers and the integrated UVC clarifier before flowing back into the pond free of algae and dirt particles. All components are perfectly coordinated with each other and are extremely low- maintenance: Connect start enjoy! Key features: Ready-to-install complete set. Integrated PLAY or FL OW energy-saving pump. New spray arm for optimum. Distribution of pond water onto the filter media. Includes original EHEIM filter media for EHEIM clear water guarantee. Pond size l/h 15000; pond size with fish 7500; pond size with koi l 3900; power pump W 50; power UVC W 11; power supply V/Hz 220-240 / 50; cable length pump m 10; cable length UVC m 5; dimensions mm 603 x 398 x 368.