Test Tube Caps

GL 45 screw cap with either two or three ports that have GL 14 thread. This is a flexible modular system which has four different hose diameters available: 1.6 mm, 3.0 mm, 3.2 mm and 6.0 mm that can be connected.Sterile pressure equalization is possible through use of membrane filter. Legal...

Ensure the safety and integrity of your scientific experiments with these high-quality, reliable caps. The KapSafe caps, available in a generous pack of 2,000, are designed to provide a secure seal, preventing any spillage or contamination. These caps are durable and designed to withstand typical...

22-400 CAP, PHEN BLK, POLY-SEAL PE CONE

Manufactured from red PTFE silicone. Ideal for screw thread vials. Specifications: Autoclavable Material: Ptfe Silicone Size: 13mm Septa Thickness: 0.010" Case Quantity: 1000

These popular caps fit plain end culture tubes and flasks with DeLong style necks or ports. The caps are molded from durable, autoclavable polypropylene (PP). They are available in a full range of five sizes and five colors for easy sample identification and organization. Recommended tube diameter...

20-400 CAP, PP YLW, CLSD, UNLINED

Long skirted screw caps with rubber liners. Autoclavable, black mineral-filled phenolic resin White rubber liners sealed into cap 14B white rubber (FDA classification) Deep skirt reduces risk of contaminatio

Thermo Scientific* Nalgene colored closures are one-piece and linerless with integrally molded seal ring to ensure leakproof performance. The opaque closures protect contents from UV light when used with opaque bottles.

Brought to you by National Scientific, the 20mm blue crimp cap is an integral part of any laboratory or scientific setting where secure sealing of bottles is paramount. This cap is specifically designed to fit a 20mm bottle opening, providing a tight and reliable seal to prevent leakage or...

Open top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.

20-400/20-400 CONNECTION, BLK PHEN

AlteCap™ Swift Automated Screw Cap Handling Full rack capping and decapping Fast screw cap handling - Decap a full rack of 96 tubes in 10 seconds Flexible - Easily switch between different tube & cap types Advance cap drivers - Compatible with all screw caps from different manufacturers...

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.

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

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....