Jones Stephens has built its reputation over the years in the plumbing industry, providing the market with thousands of products to complete any project. All parts are designed with quality engineering and construction to be durable and reliable and to meet Jones Stephens highest quality standards. The Bottom Dome Strainer fit all sizes of porcelain coated cast iron sinks. It is constructed from aluminum. This 5-1/2 in. O.D. strainer is for use with floor sinks.