The 2" No Caulk Cast Iron Slab Drain with 3-1/2" Metal Spud and 4" Nickel Bronze Strainer from Braxton Harris Co Inc is engineered for efficient drainage in slab applications. This drain features a no-calk design, simplifying installation and ensuring a watertight seal. Made from high-quality cast iron, it offers exceptional durability and resistance to corrosion. The included nickel bronze strainer enhances the drain's functionality while providing a stylish finish. This product is compliant with industry standards, making it a reliable choice for both residential and commercial projects.