Test Tube Caps

White polypropylene closure, Unlined Ensure the utmost protection for your valuable samples with these high-quality Solid Top Closures. Unlined for simplicity and efficiency, these caps offer a robust sealing solution for a wide variety of bottles. Their solid design reduces the risk of accidental...

Closure of one-piece construction with a seal achieved due to a unique inner sealing ring. Intended for use with 73750, 73760 and 73770 disposable culture tubes and 73785 disposable centrifuge tubes. Natural polypropylene Autoclavable Designed from ASTM Specification E982

National Target DP 9mm closures are designed to help chromatographers achieve more reliable and efficient sample analysis. Designed to accommodate nearly all chromatography autosamplers fitted for 12 x 32cm vial trays, the C5000 series closure effectively eliminates septa push-through and...

This tap makes it quick and easy to pour liquids from one container to another. Easy-action lever tap Works well with Cubitainers® and vented rigid containers Features an excellent flow rate of 72 ml/sec up to 155 ml/sec. Typical markets include beverage, liquid food, household, and chemicals.

Includes 5 stainless steel capsules and 20 gold-plated copper seals. For DSC runs where high pressure is expected in the capsule, we recommend you use high pressure capsules. The capsules are safe to handle due to a bursting disk on the cover of the capsule which allows the sample to escape if the...

Choose the PTFE/Silicone Septa to resist coring and provide great resealability. These septa are available in a variety of colors for easy sample identification.

Snap Caps are designed for KIMAX volumetric flasks Yellow polyethylene Caps may not be usable with items lacking necks specially tooled to proper diameters and contours Fits 100mL volumetric flasks

Closure System for 2D SAFE Tubes 96 SBS: Push or septum caps are the cheaper alternative to screw caps. They are usually used if storage is limited to a few years, the storage temperature does not fall below -80°C and the samples only have to be stored and not shipped. Through the - also...

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

Fits most 16mm tubes Polyethylene (PE) Assorted colors available

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