This Jones Stephens C90016 is a 6" Cleanout/Extension Cover that features a 24-gauge-thick stainless steel construction which will assure you of its durability over a long period of time. It is wall-mounted and it comes with a 4" bolt. Jones Stephens takes pride in providing their customers with quality products that are dependable and applicable for all of those who use them. These replacement parts and accessories are developed to both perform and to last. Together with Jones Stephens, we, at PlumbersStock, are determined to provide reliable products, like this C90016, that will meet your needs without costing a fortune.