Test Tube Caps

Purple Caps fit empty 2mL FastPrep Tubes and are used in Fastprep systems to hold sample for Homogenization. Available separately for those who wish to fill their own Lysing Matrix Tubes. Colored screw cap with o-ring.

These screw caps are suitable for all Globe Scientific screw top microcentrifuge tubes. The caps are available in a variety of colors, with or without a clear (natural) nitrile o-ring. The caps are available in a variety of colors, with or without a clear (natural) nitrile o-ring

Medium durometer PTFE / silicone septum Allows for good resealability, core resistance, multiple injections and easy penetration

MicroLiter's 11mm AlumiTin crimp-top autosampler vial seals are available in multiple colors and septa types.

For use with 18mm screw necks, 13-18mm Culture Tubes, 18-25mm Culture Tubes, 38mm Culture Tubes, 25-50ml Erlenmeyer Flasks, 125-300ml Erlenmeyer Flasks, 500-1000ml Erlenmeyer Flasks, 25-125ml DeLong Flasks and 250-6000ml DeLong Flasks. Sealed-in Silic

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...

20-400/24-400 CONNECTION, BLK PHEN

20-410 STARLINE CAP, PP RED

Plug cap, flanged. Fits most 13mm tubes Polyethylene (PE) Assorted colors available

20-400 CAP, PP BLK, CLSD, UNLINED

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...

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...

24-400 CAP, PP WHT, FMD PE LNR

Green Thermoset F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. The color green easily identifies the PTFE liner system. Foam backed PTFE liners resist attack from virtually all chemicals...

These 16mm Screwthread Headspace Vial Caps are an essential tool for any laboratory setting, providing a secure seal for vials used in various scientific research and medical applications. Designed for a precise fit, these caps prevent possible contamination or leakage, ensuring the integrity of the...

The Finneran Black Top Hat ™ closure cap assembled with PTFE/silicone septa, is used with chromatography vials. It is mainly used in research laboratories or in chemical industries. This cap is made of sturdy material which ensures long lasting usage and durability.

Biologix clear polypropylene non-sterile microtubes. Tubes are available in both conical bottom and self-standing conical bottom. Caps sold separately. Various sizes available.

MicroLiter 20mm crimp top seals are available in multiple colors and septa types.

The Agilent Technologies 2 mL blue screw cap is made from strong polypropylene material and comes with a bi-layer PTFE/silicone septa that ensures a water-tight and airtight seal. This product is only available to U.S. Domestic Customers. For research use only, not to be used in diagnostic...

Tethered screw cap for 5.0 ml MacrewTube™ Microcentrifuge tubes. Polypropylene. RNase, DNase, Pyrogen and DNA free. Autoclavable. Temp range +121 °C to -196 °C.

Made from high-quality ethylene tetrafluoroethylene (ETFE), the 45 MM Pour Ring ensures precision and minimal spillage during liquid transfer procedures. Its robust construction provides excellent resistance to heat and chemical corrosion, making it a reliable choice for laboratories and industrial...

Cap Color:   White   Thread Finish:   8-425   Material:  Polypropylene (PP)   Cap Type:   Solid Top