The 4" x 5-1/2" Cast Iron No-hub Closet Flange is designed for secure toilet installation with a no-hub connection for easy assembly. Constructed from high-quality cast iron, this flange offers exceptional strength and durability, making it suitable for both residential and commercial applications. It meets ANSI standards for plumbing fixtures, ensuring reliable performance. The flange's design allows for a secure fit with standard 4" pipes, preventing leaks and ensuring a stable toilet installation.