Pentair Automatic Water Filler with Fluidmaster Valve, Dark Gray | T40FDG

Protect your pool equipment by ensuring proper water level. Failure to keep your water level right can result in damage to pool equipment. The pentair automatic water filler protects your investment by using simple, reliable float mechanisms to monitor and control the water level in your pool or spa. When water drops below a preset level, the unit meters in additional water until the proper level is restored. If water levels are too high, the built-in overflow will take the right amount of water out of the system.pentair automatic water fillers are the latest in automatic pool and spa water level controls. Simple and reliable, with no need for electronic controls, they ensure that your water levels are right for safer pool and spa operation and enjoyment.