Test Tube Caps

MicroLiter 20mm crimp top seals are available in multiple colors and septa types. Designed for precision and reliability, these 20mm Tearaway Crimp Top Headspace Vial Seals offer an innovative solution for your laboratory needs. With their tearaway design, they allow for easy access to the vial...

Bulk, 480 tubes per case

Enhance the sealing of your laboratory bottles with the high-quality 20-400 I-LOC CAP from DWK Life Sciences (Wheaton). Crafted from resilient and heat-resistant blue polypropylene, this cap is designed to withstand demanding laboratory environments. Its unique I-LOC closure system ensures a secure...

Choice of six liners Screw thread

Manufactured from polypropylene Low extractable septa 100 pack with 10 packs/case

20 MM SEAL, SOLID TOP, ALUM NAT, UNLINED

Excellent for Culture Tube and Flask Closures. 305 Stainless Steel, Non-Corroding. Lanced fingers grip firmly after repeated autoclaving.

Azenta products are intended for sale/shipment within the US and Latin America only. All other International customers should contact their local Azenta distributor to place orders for Azenta products.

Available in multiple colors and package sizes. Enhance the reliability and efficiency of your chromatographic analysis with MicroLiter's premium quality caps. Expertly designed, these 9mm screwthread autosampler vial caps come with PTFE/Silicone Septa, ensuring a clean, leak-proof seal for your...

Designed by DWK Life Sciences (Wheaton), this black polypropylene I-LOC Cap is a reliable choice for securing your 20-400 neck finish bottles. Made from durable polypropylene, it provides excellent resistance to a wide range of chemicals, ensuring the integrity of your samples or reagents. This cap...

Metal caps offer the widest range of temperature tolerances and are very resistant to fracture from impact. Metal caps are great for industrial and food applications. A metal closure is manufactured from either steel (coated with anti-corrosive coating of either chromeplate or tinplate) or aluminum....

Solid or vent replacement caps for tissue culture and suspension culture flasks, packaged sterile (gamma irradiated) Vent caps feature 0.22um hydrophobic membrane for gas exchange Manufactured from medical grade virgin polyethylene (HDPE)

Pre-assembled closure and septa minimize contamination from handling. They are convenient and available in a variety of colors with your choice of septa.

Used for snap thread vials.Caps may be snapped on and off by hand which eliminated the need for a metal crimping and decapping tool. Specifications: Size: 11mm Septa Material: Ptfe Case Quantity: 1000

Ideal for a variety of laboratory applications, this cap is constructed from sturdy and durable white polypropylene. It is designed to fit bottles with a 15-415 neck finish, ensuring a secure and tight fit. The addition of a foam polyethylene liner further enhances the seal, helping to maintain the...

White polypropylene screw cap provides clear surface for writing on cap Foamed polyethylene liner provides chemical resistance for acids, alkalis, solvents, alcohols, oils, and aqueous products Excellent for environmental samples, pharmaceuticals and diagnostic reagents. 28-410 thread Not...

Designed for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 8mm Case Quantity: 100 Color:...

These pierceable caps are great for recapping vacuum blood tubes and test tubes. They are produced from santoprene (a rubberized material) and can easily be pierced with a syringe.

Septa for Screw Thread Closures This high-quality GPI 13-425 Septa is designed for precise and secure sealing of laboratory bottles. With its robust construction, it ensures a perfect fit for 13-425 GPI bottles, providing an excellent barrier from environmental contaminants. Whether for research,...

AlteCap™ Switch Semi-Automated Screw Cap Handling The only decapper capable of switching between 6, 8 and 12 formats. Quickly cap, decap or recap tubes by column or row. Featuring interchangeable cap driver cassettes for easy processing of different screw cap tube types and tubes in 24, 48 or...

Quickly identify samples using Thermo Scientific™ Nalgene™ PPCO Low-Profile Micro Packaging Vial Closures, offered in a variety of colors. Closures are molded of high-purity, low metal-content polypropylene copolymer resin—excellent for PCR reagents. Features: Vials (listed...

Enhance your laboratory efficiency with these autoclavable, polypropylene closures from DWK Life Sciences (Kimble). Specifically designed for culture tubes, these KIM-KAP closures not only provide a secure seal to safeguard your valuable samples, but their color coding feature also simplifies sample...

Ready assembled crimp closures N 20 and plain crimp caps with no liner Closures available with a broad veriety of septa materials and different cap types / materials, incl. magnetic and bi-metal crimp caps For all autosamplers transporting vials by a magnet, incl. the CTC PAL autosampler, magnetic...