Jones Stephens has built its reputation over the years in the plumbing industry, providing the market with thousands of products to complete any project. The Square Heavy Duty Strainer is 4-1/4 inch edge-to-edge and includes screws. It's constructed of durable cast brass. For use with D50-series (2 inch x 3 inch) series shower drains and 2 inch x 3 inch general purpose drains.