The Fernco 4" x 4" Donut is engineered for optimal sealing in plumbing systems. Constructed from high-grade materials, this donut ensures a tight, leak-proof connection between pipes. Its 4-inch size is perfect for standard plumbing applications, making it a reliable choice for both residential and commercial use. The donut meets industry compliance standards, ensuring safety and performance. Easy to install, it is ideal for drainage and venting systems, enhancing the overall efficiency of your plumbing infrastructure.
