Oatey Set-Rite toilet flange extension Kit is a watertight solution for raising the toilet flange during a remodel. This extension kit provides the ability to easily extend the flange surface above the finished floor for optimum sealing with a standard wax ring. The kit includes four different size spacers and six self tapping screws to complete the installation. Oatey products have earned the trust of plumbing professionals for over 100 years.