Oatey | sku: 173390 Oatey 4 In. Pvc Open Toilet Flange Replacement This Oatey 4 in. PVC DWV Replacement Closet Flange features a rubber compression gasket that enables the flange to be used on many types of cast-iron piping. Installs without a need to tear up your flooring or caulk the cast-iron piping. Fits inside 4 in... Log in for pricing