Sioux Chief PVC Offset Closet Flange with Swivel Ring is designed for full-flow performance with a 3-inch inside diameter throat that ensures no restriction. This flange allows for a 1-1/2 inch offset in any direction, making it i for precise closet bowl placement. It features a corrosion-resistant stainless steel swivel ring engineered for maximum strength and durability. The flange solvent welds over 3-inch or inside 4-inch Schedule 40 DWV pipe and fits flush to the floor through any 4-inch opening, providing a secure and reliable connection. While the inside diameter of pipe can vary significantly, these flanges are designed to fit inside most types of pipe, though they may not fit all. This product is UPC listed and made from durable PVC material, combining functionality and longevity for plumbing applications. Model Number: 889-POM