Superlok SC Tube Caps provide a secure, leak-tight seal for the ends of fractional or metric tubing runs during maintenance, pressure testing, or system shutdowns. Manufactured from high-quality 316 stainless steel, these caps feature the trusted Superlok double-ferrule design for reliable performance in demanding applications, including chemical processing, instrumentation, and high-pressure gas or liquid systems. They are quick to install and remove, allow repeated make-and-break connections without loss of sealing integrity, and are fully interchangeable with other leading two-ferrule tube fitting brands.