FillerSaver ADJUSTABLE TANK FILLER VALVE with Bowl Fill Regulator and Reusable In-Line Filter. CONVERVES WATER by reducing bowl overfill and SAVES on REPAIR COST by trapping harmful sediment. Slim Design Fits Any Tank Size  Fully Adjustable for Height, Water Level and Bowl Fill Quantity Easy Height Adjustment with Positive Lock Tab  Simply Unlock and Twist to Adjust Included Bowl Fill Valve Saves Up to  Gallon Per Flush  4,000 Gallons Per Year Average Family No Loss of Standard Flush Function or Compromise  Install-Adjust-Forget Commercial Grade Plastics and Seals  12 Month No Hassle Warranty  Meets All Plumbing Codes