The Advantech Manufacturing VWR Uni-block is designed specifically for 21mm vials, model 984VWM21MMV. This innovative unit provides a secure and stable environment for your samples, ensuring optimal performance during storage and analysis. Its robust construction guarantees durability, while the precise fit accommodates various vial types. Ideal for laboratories and research facilities, this Uni-block enhances efficiency and organization, making it a must-have for any professional setting. Available as a single unit (EA), it’s perfect for those looking to streamline their workflow without compromising on quality.