Discover the perfect solution for your laboratory needs with the Nalge Nunc Closures designed specifically for NALGENE Micro Packaging Vials. These closures are made from high-quality PPCO material, ensuring durability and a secure fit. Each closure is sterile, making them ideal for sensitive applications. The natural color allows for easy identification and compatibility with various sample types. With the NALGENE 342820-0112 model, you can trust that your samples are well-protected and contamination-free. Perfect for research, clinical, or industrial use, these closures are a must-have for any lab setup!