Oatey's Set-Rite Toilet Flange Extension Kit is a UPC-listed, water-tight solution for raising the toilet flange during a remodel. It can correct flange elevations ranging from 1/4" to 1-5/8" with different spacer sizes. The kit includes 4 different size spacers and six self-tapping screws to complete the installation. The extension kit provides the user the ability to easily extend the toilet flange surface above the finished floor for optimum sealing with a standard wax ring.