Designed for compatibility with torches 17, 18, and 26, this medium-sized back cap from Weldmark by CK Worldwide is an essential component for TIG welding applications. Crafted from durable plastic, it ensures a reliable connection while maintaining optimal performance during your welding tasks. This back cap not only enhances the functionality of your torch but also serves as a testament to quality manufacturing, with its origin in China. Whether you're a professional welder or a hobbyist, this back cap is a crucial addition to your welding consumables.