Test Tube Caps

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

For Analyzing Organic Substances for OxygenContentEither silver or standard tin capsules may be used for analyzingorganic substances for oxygen content.

Inner seal ring 45 mm size Caps have built-in, wedge-shaped sealing ring, eliminating the need for a liner. Use with Wheaton Lab 45® media bottles.

Convenient assembly of caps and liners Available with standard or pre-slit septa Autoclavable and used for multiple injections

18-400 CAP, PP WHT, F217 FMD PE LNR

Open top closures with excellent chemical resistance Specially formulated phenolic resin to withstand the effects of repeated autoclaving Linerless Identified in ASTM Specification E982, Class A requirements

Secure your laboratory samples with reliable sealing solutions. These 12 mm Plug Caps offer a dependable and efficient sealing option for a variety of laboratory bottles. Constructed with precision, they fit snugly onto 12 mm diameter bottles, minimizing the risk of spillage, contamination, and...

The 12-place cuvette holder is made from polyethylene (PE) and holds 12 cuvettes in place for preparation work, storage and protection from tipping over. When in storage, the racks are stackable. Dimensions: 170mm x 50mm x 15mm. The caps are produced from low density polyethylene (LDPE) and easily...

These plastic push-fit caps are designed for closing vials of injectable drugs. Flip-off snap caps are pre-assembled with an ISO 8362-2 compliant elastomer stopper to simplify the production process. Container Closure Integrity (CCI) validated for use with ISO 8362-1 glass and COP vials Delivered...

24-400 CAP, PP WHT, F217 FMD PE LNR

Designed to fit 18 mm screw thread headspace vials. 1184G07 (73880-18) is silver with red PTFE/white silicone press fit septum 1184G08 (73885-18) is silver with red PTFE/gray press fit butyl rubber septum

SuperClear® Screw Cap Microcentrifuge Tubes include caps with molded-in elastomeric seal or ethylene propylene O-Rings and are ideal for any sample processing application. Excellent for frozen storage or when working with hazardous or valuable materials. Packed 500 in a bag and 10 bags in a...

PTFE Discs are made of 0.010" solid virgin PTFE. They can be manually inserted into closures of appropriate size. Often used for environmental sampling. Convert ordinary caps into non-contaminating closures at a fraction of the cost. Just press the disc into your existing closure. Easy-to-clean....

Designed to provide a secure and reliable seal, this 13-425 STARLINE CAP is made from high-quality polypropylene, ensuring excellent chemical resistance and durability. It is ideally suited for use in a variety of laboratory settings, from chemical analysis to biological research. The white hue not...

Thermo Scientific* Samco Tube Closures are available as flanged caps, two-position snap caps and universal caps. Our processes are monitored with quality checks which provide continued lot-to-lot uniformity and reliable performance.

PolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Great for everything from...

MicroLiter offers products for both LC and GC applications. MicroLiter presents a reliable solution for ensuring the integrity of your samples with their 11mm Snap Caps, equipped with PTFE/Silicone Septa. These caps offer a secure fit for your scientific containers, minimizing the risk of...

Offered by West Pharmaceutical Services, the PLASCAP® plastic vial cap is an essential component for any laboratory or medical setting. Manufactured with high-grade plastic, these caps ensure optimal sealing of vials, protecting the contents from potential contamination. Designed for ease of use,...

The BiMetal Seal is comprised of tin and aluminum materials. The outer surface (red or blue) is aluminum and the inner diameter is a silver tin.

Enable rapid identification by using Thermo Scientific™ Nalgene™ HDPE High Profile Closures with Color Coders for Micro Packaging Vials. Closures have no O-ring to fall out or contaminate contents and are free of toxic heavy metals. Permanently attached color coded inserts do not come in...

Open Top Screw Cap Only 15mm Specifications: Size:15mm Material: Black Phenolic Thread Finish: 15-425 Packed 250 Per Case

Made of Polypropylene T504AQX screw cap incorporates a pierceable septum made of chemically resistant PTFE on the outside and silicone on the inside, both components being stable over a broad range of temperatures. The septum also acts as a silicone O-ring for better sample protection. It is...

Ideal for a variety of laboratory applications, the 13-425 cap is constructed from durable polypropylene, ensuring longevity and resistance to chemical degradation. Its white hue allows for quick visual identification in busy workspaces. The cap comes equipped with a PTFE/FMD PE liner, offering...

As it burns, tin releases heat, causing the sample to break down more quickly and more completely. Tin capsules are routinely used to analyze polymers, soils, coal, dry dairy products, plant leaves, paper, textiles, calibration standards, and many organic and pharmaceutical products. To use, simply...