The 20'' 24GA PCD End Cap by Southwark Metal Mfg Co is essential for sealing duct ends in HVAC systems. Constructed from durable 24-gauge galvanized steel, this end cap ensures long-lasting performance and resistance to corrosion. With a 20-inch diameter, it fits standard duct sizes, providing a secure closure for air distribution systems. The PCD design allows for easy installation and compatibility with various applications. This end cap is ideal for both residential and commercial HVAC setups, meeting all necessary industry standards.