SD CAPS

Welcome to the SD Caps category at Webb Supply's online shop. Discover a wide selection of square duct caps designed to provide a secure and effective closure for your HVAC system's square ductwork. Our SD caps are crafted with precision and durability in mind, ensuring a tight seal and preventing unwanted air leakage. Whether you need to cap off an unused duct branch or temporarily close a section during maintenance or repairs, our SD caps are the perfect solution. Explore our range of sizes and configurations to find the right cap for your specific ductwork needs. Improve the efficiency and performance of your HVAC system by ensuring proper sealing with our high-quality SD caps. Shop now at Webb Supply and experience the difference.