PRODUCT DESCRIPTION Oatey Closet Flange Spacer builds up existing closet flanges when installing new flooring and renders finished floor height below grade. The stackable feature accommodates a wide range of height adjustments. Oatey products have earned the trust of plumbing professionals for over 100 years. FROM THE MANUFACTURER Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry