The PPCM4420U is a 4-inch PCM (Plastic Coated Metal) component from Merrill Manufacturing, known for its high-quality construction and reliability. This model is designed to withstand harsh conditions, featuring a durable plastic coating that protects against corrosion. Its dimensions are optimized for seamless integration into various plumbing and drainage systems. The PPCM4420U adheres to industry standards, ensuring it meets the necessary compliance for safe and effective use. This product is perfect for both residential and commercial applications, providing long-lasting performance.