Features:

• No special venting needed.
• Fully sealed, no gas leaks.
  
• External control valve prevents clogs.
• The feeder automatically lowers the water level, so tablets don’t soak when the pump is off, making tablet use more efficient.
• No damage to products. It delivers sanitizer straight to the pool or spa. 
• To avoid overfeeding, close the control valve completely; the built-in check valve stops chemicals from entering the pool or spa. All components can be replaced.
• For pools between 11,900 - 47,600 Gallons