This 3" No Caulk Cast Iron Drain is designed for hassle-free installation, featuring a 3-1/2" metal spud and a 4" brass strainer. The no-caulk design eliminates the need for additional sealing, ensuring a leak-proof connection. Made from high-quality cast iron, this drain is durable and resistant to corrosion, making it suitable for various plumbing applications. Its brass strainer provides excellent flow while maintaining a stylish appearance. Ideal for both residential and commercial plumbing systems, this drain meets industry standards for reliability and performance.