Test Tube Caps

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...

Screw Caps for use with SuperClear® microcentrifuge tubes 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...

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

38-430 STARLINE CAP, PP NAT

Reduce risk of contaminating contents with Thermo Scientific™ Nalgene™ PPCO High Profile Closures with Color Coders for Micro Packaging Vials. Polypropylene copolymer closures have no O-ring to fall out or contaminate contents and are offered with a variety of color coders. Features:...

PTFE-lined Closed Caps are replacement Caps for Thermo Scientific glass environmental sample bottles, jars, jugs and vials. The same high quality PTFE-lined caps used on our Thermo Scientific glass environmental sample containers. The PTFE liner is bonded to the cap so it won't fall out or become...

EZWaste® UN/DOT Filter Kit, VersaCap® S70, 4 ports for 1/8" OD Tubing, 4 port for 1/4" HB or 4 port for 3/8" HB and One Exhaust Filter, w/ Plugs.

Chem Snap Caps™ may be snapped on and off by hand which eliminates the need for metal crimping and decapping tools, thus reducing potential hazards due to sharp aluminum edges. Large opening provides greater target area for needle penetration. These liner-less Chem Snap Caps™ are...

Black Phenolic F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility. Foam backed PTFE liners resist attack from virtually all chemicals at room temperature and provides resilience for a tight seal with a low moisture transmission rate. F217 has a low density foam...

These polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification.