Test Tube Caps

11 MM SEAL, SOLID TOP, ALUM NAT, UNLINED

13-425 STARLINE CAP, PP GRN

Material: Red PTFE/Silicone Septum Feature: Closure type crimp seal Packaging: Package of 1,000 each Seal Diameter: 11 mm Fitting: Closure for 11 mm crimp top vial

13-425 CAP, PP WHT, TFE LNR

The Finneran 9 mm septa in white color, 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 material which ensures long lasting usage and durability.

45 MM CAP, PP WHT, BND TFE LNR

Enable rapid identification by using Thermo Scientific™ Nalgene™ HDPE High Profile Closures with Color Coders for Micro Packaging Vials, offered in a variety of colors. Closures have no O-ring to fall out or contaminate contents. Color-coded inserts are free of toxic heavy metals and do...

1228A16, A17 and A25 are for use only with NALGENE narrow- and wide-mouth bottles and Erlenmeyer flasks 1228A27 is for use with carboys Autoclavable Available in natural and amber

Thermoset closures are a strong closure with the wide range of chemical compatibility and a high tolerance for both hot and sub-zero temperatures with proper liner selection.

LDPE foam-lined white polypropylene cap Bottles sold separately: 013-series and 012-series Recommended for general purpose sampling where cleaning and certification is not required, or ready for your own cleaning and certification procedures Economically bulk packed Includes: Cap only Compliance:...

Flexible modular system. Four different hose diameters (1.6 mm; 3.0 mm; 3.2 mm and 6.0 mm) can be connected. Sterile pressure equalization is possible through use of membrane filter. Unused ports can be provided with a blind cap.

Lug Lid with clear epoxy rust inhibitor lining fits 5 gallon steel pails and is plain with no fittings.

Premium pour caps & ring Compound formulated without colour dye to avoid risk of leaching. Service temperature limit from –196°C to +200°C. Very high chemical resistance. High leak tightness through use of PTFE coated silicone seal. A matching TpCh260 pouring ring is also...

TwdBiox Sterile Microtubes Screw Cap With O-Ring. Multiple Colors Available. Polypropylene. Tube Sold Separately. Fit Twd Biox Microtubes.

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

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