The "Difference" is in the Plumbing

The Flush Valve Acts as a timer to shut off the system if the water in the tank doesn't reach sensor by the time the cup fills

The Flapper Flush System has a float attached to the flapper chain that can be adjusted up to use less water and down to use more water based on how quickly the flapper closes. This provides the owner complete control over the gallons per flush used

The Enhancer helps the tank to fill more efficiently by diverting water that would normally be wasted down the drain back into the tank.

Be wise, choose Water Wise

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