Test Tube Caps

Ideal for a variety of laboratory applications, this white polypropylene cap is designed to provide a secure fit for a 33-400 neck size bottle. Its robust construction ensures durability and reliability for long-term use. The cap also features a foam polyethylene liner, which serves as an excellent...

MicroLiter Certified ULTRAPure Septa caps ultra-low bleed silicone inserts in 11 mm silver aluminum crimp caps are available in non-silted and silted versions. Ultra-low bleed blue/teal silicone Shore A is laminated to white PTFE film, 3 mm thick. Silver aluminum crimp caps are lacquer coated....

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.

Use these caps with WHEATON or other manufacturers# glass bottles or vials White polypropylene screw cap provides clear surface for writing on cap Foamed polyethylene liner provides chemical resistance for acids, alkalis, solvents, alcohols, oils, household cosmetics and aqueous products Liner...

With PTFE faced silicone liner 45mm screw thread Withstands temperatures up to 200C Autoclavable

Open top cap for use with GL screw threads. The cap combined with the CG-197 sealing ring will accommodate tubing of the listed diameter. Cap is made from PBT (thermoplastic polyester) and will withstand temperatures from -45 to 200°C.

24-410 CAP, PP WHT, FMD PE LNR

Universal plug stopper fits most 10mm, 12mm, 13mm & 16mm tubes. Produced from polyethylene (PE), the caps are available in 7 different colors.

In addition to our standard black and white caps, we now offer our VOA Vial caps in a variety of Spring colors. This is an ideal way of color coding your samples.

Azenta products are intended for sale/shipment within the US and Latin America only. All other International customers should contact their local Azenta distributor to place orders for Azenta products.

Designed for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 10mm Color: Blue Case Quantity:...

The 50mm closed adapter is designed to be used with the 50mm open VersaCap. It enables the user to change the top connections creating a closed system. The adapter is molded from USP Class VI, FDA Grade material, and is autoclavable. The adapter is designed to be leakproof and comes with a...

Replacement rubber seals for use with the Nanoject III® from Drummond Scientific. The Nanoject III Rubber Seals by Drummond are essential components designed to maintain the integrity of the Nanoject III device. These seals ensure a secure fit, preventing leaks and maintaining precision during...

20-400 CAP, PP RED, OPN, UNLINED

Ensure safe and secure storage and transportation of your valuable liquids with this high-quality Jerrican Vent Cap. Designed for durability and efficiency, it offers controlled release of pressure, enhancing safety during storage and transport. Its robust construction guarantees long-term service,...

24-410 STARLINE CAP, PP WHT

18-400 CAP, PHEN BLK, POLY-SEAL LNR

Designed for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 10mm Color: Blue Case Quantity:...

Black Phenolic Solid PE Lined Caps offer good chemical resistance and low moisture vapor transmission rate. They are great for nail polish remover and higher concentration acids & alkalis. Good for non-oil products filled at room temperature. Because this lining system is paperless, your samples...

Fits most 16mm glass tubes Fits most 16mm glass evacuated blood collection tubes Thumb tab for easy removal Polyethylene (LDPE) 1000 caps per sealed bag Assorted colors available These colorful snap on closures are an effective way to recap 16mm blood drawing tubes and glass test tubes. They are...

The Ace Glass septa is made from strong glass that provides added durability. septa is used mainly for minimizing pain and inflammation in the injured areas while performing surgical procedures.

Size 15 o-ring connector (15 mm ID) to seal flasks or for use with 216040 HI-VAC® manifold. Supplied with one size 116 FKM o-ring Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements  

Labcon Flat Caps for 50mL Centrifuge Tubes. Flat style screw cap for Labcon 15 mL centrifuge tubes Endotoxin Free (non-pyrogenic) Polyethylene USP Class VI resin Not autoclavable Teal color Made in USA