The Septa Suba Seal Type Stopper is a high-quality rubber stopper designed for airtight sealing of laboratory bottles, vials, and reaction vessels while allowing repeated syringe penetration. Manufactured from durable laboratory-grade rubber, it provides excellent chemical resistance and elasticity, ensuring reliable sealing during sampling or reagent transfer without removing the stopper. These stoppers are autoclavable, making them suitable for sterilization and repeated use in laboratory and research environments. The self-sealing septum design allows needles to pass through easily and reseal after withdrawal, minimizing contamination and maintaining sample integrity.