Helix Max UV sterilizers can eliminate single-celled algae and give crystal clear water in aquariums and ponds. The water is guided in a spiral path around the quartz tube, resulting in a more efficient use of the UV radiation than in standard units. The inlet and outlet fittings can be rotated 360 for easy mounting at any angle. All Helix Max with a rubber cable and high-frequency electronic ballast, for garden ponds, salt and freshwater aquariums. The electronic ballasts extend the life and efficiency of the UV lamps.Product description Water clarifier for fresh- and saltwater aquaria and garden pondsHelix MaxUV sterilizers can eliminate single cell algaes giving crystal clear water in aquaria and ponds. The water is directed in a spiral path around the quartz tube resulting in more efficient use of the UV radiation than in standard units. The inlet and outlet fittings can be rotated through 360 for easy mounting at any angle. AllHelixMaxwith a rubber cable and high frequency electronic ballast, for garden ponds, salt- and freshwater aquaria. The electronic ballasts increase the lifetime and the efficacy of the UV lamps. Type5 Watt9 Watt11 Watt18 Watt36 Watt55 Watt Saltwater aquarium25 – 125 l125 – 250 l150 – 350 l250 – 500 l500 – 1,000 lup to1,500 l Recommended max. flow100 l/h200 l/h300 l/h500 l/h1,000 l/h1,500 l/h Freshwater aquarium50-250 l250-500 l350-750 l500-1,000 l1.000-2.000 lup to3.000 l Recommended max. flow200 l/h500 l/h700 l/h1,000 l/h2,000 l/h3,000 l/h Capacity1.8 W/UVC2.4 W/UVC3.6 W/UVC5.5 W/UVC12 W/UVC17 W/UVC Cable length2 m2 m2 m10 m10 m10 m Lamp typePL-S-5 WPL-S-9 WPL-S-11 WPL-S-18 WPL-S-36 WPL-S-55 W Max. pressure0.3 bar Power connection230 V~/50 Hz Dimensions l x win mm, app.160 x 75240 x 75290 x 75380 x 120510 x 120650 x 120