The 12" No Hub Couplings from MATCO NORCA are UPC listed for quality assurance in plumbing applications. These couplings are designed for easy installation and provide a secure connection between pipes without the need for additional fittings. Made from high-quality materials, they ensure durability and resistance to leaks. With a 12" diameter, these couplings are perfect for use in drainage, waste, and vent systems. Their no-hub design simplifies the installation process, making them a preferred choice for both professionals and DIYers.