The 4" Flapper Arm for 120W/WC CHE by Matco-Norca is designed for reliable performance in plumbing applications. This durable flapper arm is made from high-quality materials to ensure longevity and resistance to wear. It is specifically engineered for 4" systems, providing a perfect fit for 120W models. The arm's robust construction guarantees optimal sealing and functionality, making it an essential component for maintaining efficient water flow. Ideal for both residential and commercial plumbing, this flapper arm meets industry standards for quality and performance.