From rubber stoppers to screw thread closures, snap caps to aluminum seals, DWK Life Sciences completes your package with the right closure for your application. Our comprehensive range of caps and closures ensures that you get the perfect fit for your container and chemical compatibility with your samples. Our caps conform to GPI (Glass Packaging Institute) standards and ISO and ASTM specifications, as well as European DIN specs. To best support, your efforts, all our plastic, and aluminum caps and closures are manufactured from the highest quality raw materials and to yield exceptional dimensional stability.

• Slip-On Caps-A convenient closure system for culture tubes. KIM-KAP® polypropylene closures for culture tubes are autoclavable and available in five different colors for convenient color-coding.

• Screw Thread Caps-Ideal closure solution for applications involving repeated opening and closing of the container. A wide selection of sizes and liner configurations delivers a perfect fit with each container and chemical compatibility with the sample. Tubing connection caps and liquid distribution systems for safe and easy liquid transfers in and out of bottles.

• Stoppers- Stoppers available in a wide selection that includes glass, butyl rubber, and silicone. Extremely high chemical purity and low gas permeability. A wide variety of styles and sizes are available.