Manual dosing of liquid or granular chlorine can be hazardous. Over dosing can cause eye irritation, itchy skin and a strong chlorine order. The Astral - Pool VX salt chlorinator continuously generates the precise level of chlorine required into your pool. With the convenience of a touch pad the level of output can be adjusted and operating hours can be preset. With the self cleaning ability the VX Salt Chlorinator is perfect for any pool and spa combination.HighlightsEasy to use control system - Available with or without time clock - Self cleaning - Precise level of chlorine is added as requiredFeaturesPERFECT SANITATION – Helps eliminate skin irritations, red eyes, and protects your Pool and Spa equipment. - AUSTRALIAN MADE – Proudly designed and manufactured in Australia for Australian conditions. - CHLORINATORGO-Built in Bluetooth control with your i - OS and Android smartphone. (Bluetooth control only available on selected models.) - Specifications Model No. VX 7T VX 9T VX 11T Pool Coverage Chlorine output/hour 25 gms/hr 30 gms/hr 42 gms/hr - Pool volume (temperate climate) 96,000L 120,000L 160,000LPool volume (tropical climate) 50,000L 75,000L 100,000LSalt levels 3000 to 8000 ppm 3000 to 8000 ppm 3000 to 8000 ppm - Recommended salt levels 4000 ppm 4000 ppm 4000 ppm - Max filter pump current draw 8.9 amps 8.9 amps 8.9 amps - Programming Clock timer settings 4 timers 4 timers 4 timers