Test Tube Caps

There is increasing evidence that exposure to PFAS (Per-and Polyfluoroalkyl) can adversely affect human health.  Per-and Polyfluoroalky substances do not break down, accumulating over time.  PFAS are widely used in materials such as PTFE.  Due to Government regulations that mandate...

11 MM SNAP CAP, PE CLR, TFE/SIL/TFE, STA

Ensure the utmost security and integrity of your samples with the Thermo Scientific AVCS™ Screw Caps. This advanced closure system is designed to form a tight seal on 9mm bottles, offering superior protection in rigorous laboratory environments. Suitable for a wide range of applications, this...

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...

24-400 CAP, PP WHT, PTFE/FMD PE

Patented 120mm Adapter Insert VersaCap® is leak-proof, has replaceable platinum-cured silicone gaskets, and provides the ultimate in top-connection flexibility. Open VersaCap® is compatible with a variety of adapter inserts, enabling users to quickly change the top connections of each carboy or...

ZapCap® CR Bottle Top FiltersZapCap®For filtration of medium volumes, cell culture media and HPLC solutions.Features and benefits: •Complete 500 ml units with tubing nozzle; for attaching to bottles (bottle-top) •Connection seals on any standard bottles 33 to 45 mm •Membrane...

EZwaste® Safety Vent VersaCap® 83mm, Ports, Tubing and a Chemical Exhaust Filter. Foxx Life Sciences™ EZwaste® Solvent Waste System is designed to be an affordable solution for liquid waste disposal. Each system is manufactured to safely collect waste from one or more HPLC systems while the carbon...

Synonyms: caps bottles; glass bottles caps Legal Information: DURAN is a registered trademark of DWK Life Sciences

White polypropylene closure, PTFE lined. For  Boston Round Glass Bottles,  See  1204X96 -  1204Y17

Convenient, economical closures for use with the Kim-Rak or other disposable culture tubes. Sterility of contents is maintained without the need for cotton plugging. Kim-Kaps can be removed and replaced without contamination of the contents. Yellow cap color.

safePort™ Low Profile O-ring Caps fit safePort™ 0.5, 1.5, and 2.0ml screw cap vials. Screw caps deliver leak-proof seal for all types of contents, ideal for life science reagent or solution. Caps and vials sold and packaged separately allow for customization on coloring and sizes desired...

Dropper Assemblies feature a glass tube with black polypropylene closure and rubber squeeze bulb. Tip opening has a 3.0mm outside diameter.

Overfitting caps for use with sterile culture tubes have two positions: loose for aerobic culturing and tight for anaerobic cultureing and leakproof sealing.  Designed to fit specified tube material and size, listed in description.  Available in non-sterile or sterile.

Made of polypropylene Caps are available either with or without a silicone washer between the cap and the tube to ensure a positive leakproof seal at all temperatures. As for tubes, these closures are also made of polypropylene, providing the same coefficient of expansion for both, which further...

The Finneran 24 mm septa is mainly used with screw thread closures for tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This septa is made of sturdy PTFE/silicone material which ensures long lasting usage and durability.

Made of polyethylene An economical way to recap blood drawing tubes, disposable glass test tubes and plastic culture tubes. Flexible VACUCAP™ closures protect from aerosols of highly infectious microorganisms. They guard samples against cross-contamination and laboratory work areas against...

Bonded and ready assembled open top black screw closures 10-425 and plain caps with no liner Closures available with a broad variety of septa materials Red Rubber / FEP septum for routine analyses; for more demanding analyses: high purity silicone / PTFE septa Slit silicone/PTFE septa as a...

These colorful snap-on closures are an effective way to recap blood drawing tubes, glass test tubes and plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are available in...

15-425 CAP, PHEN BLK, POLY-SEAL PE CONE

Stem & Draw Tube Closure Applicable with Nalge # 2401-0125 & 2401-0250