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Bottle Caps

Bottle caps provide an air-tight seal that ensures that a bottle’s contents are leak- and spill-proof, resistant to temperature and that the bottle can be moved. The most ubiquitous style is the threaded screw cap. Caps are available in different sizes and colors and can be specialized for the type of container they sit upon. Popular cap materials include phenolic plastic, polypropylene and PTFE. Bottle caps can be lined with additional material and can be found in solid design or open design, which calls for a septa or insert for complete closure.
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Keyword Search:
46 – 60 of 1,581 results
46

DWK Life Sciences WHEATON™ Polypropylene Caps for WHEATON™ Dropping Bottles, Blue
SDP

WHEATON™ Polypropylene Caps for WHEATON™ Dropping Bottles - Blue are screw caps made of radiation grade polypropylene. Available in multiple thread sizes and sold in cases of 100 or 1,000 to suit laboratory dispensing needs.

Color Gray
Material Polypropylene
47

DWK Life Sciences WHEATON™ Black Phenolic Screw Cap with Open Top
SDP

WHEATON™ Black Phenolic Screw Cap with Open Top is an autoclavable, linerless closure designed for screw-thread bottles and vials. The open top design allows direct syringe access without removing the cap, making it ideal for laboratory sampling and dispensing applications.

48

DWK Life Sciences KIMBLE™ Aluminum Seal Caps with PTFE-Faced Silicone Septa
SDP

KIMBLE™ Aluminum Seal Caps with PTFE-Faced Silicone Septa feature a medium durometer PTFE/silicone septum that allows for good resealability, core resistance, multiple injections, and easy penetration. Ideal for GC vial sealing applications.

Neck Finish 11
Material Aluminum
For Use With (Application) Multiple injection
49

DWK Life Sciences KIMBLE™ KONTES™ Ultra-Ware™ Three Hole Delivery Caps ETFE Nut Plug 1/4 in.-28
SDP

KIMBLE™ KONTES™ Ultra-Ware™ Three Hole Delivery Caps ETFE Nut Plug 1/4 in.-28 is used to seal ports with flat bottom 1/4 in.-28 threads on Ultra-Ware three-hole delivery cap assemblies. Made from ETFE for chemical resistance.

50

DWK Life Sciences WHEATON™ Colored Polypropylene Caps With Center Hole
SDP

WHEATON™ Colored Polypropylene Caps With Center Hole are replacement caps designed for Lab 45 media bottles. Featuring a 45mm screw thread, built-in wedge-shaped sealing ring, and center hole, these autoclavable polypropylene caps provide a reliable, reusable closure solution.

51

DWK Life Sciences WHEATON™ PVC Dropper Tips
SDP

WHEATON™ PVC Dropper Tips convert any crimp or serum bottle with a 20mm mouth OD into a dropper container. Made from PVC with an HDPE closure, each tip dispenses a consistent 40μL drop using water.

52

Thermo Scientific™ Nalgene™ Polypropylene Pour Spout
GREENER_CHOICE

Enjoy easy one-handed liquid dispensing without leaving bottles completely open to the environment. Vented to allow smooth flow for easy liquid dispensing.

53

Thermo Scientific™ Nalgene™ Colored Polypropylene Closures with 28-415 Finish
GREENER_CHOICE

Ensure leakproof performance with these colored, polypropylene closures with 28-415 finish. Closures are one-piece and linerless with integrally molded seal ring.

Height (Metric) 15 mm
Shape Round
Description Nalgene Colored Closures
Thread Size (Metric) 28-415
Height (Metric) With Closure 15 mm
No. per Case 500
Material Polypropylene
For Use With (Equipment) Nalgene narrow-mouth 500mL bottles
Product Type Screw Cap
Diameter (Metric) 30 mm (Outer)
Mouth Narrow
Packaging Bulk
No. per Pack 500
Liner Material Unlined
Height (English) 0.59 in.
54

DWK Life Sciences WHEATON™ Open Top Screw Caps with Silicone Liner
SDP

WHEATON™ Open Top Screw Caps with Silicone Liner feature a bonded PTFE faced silicone liner for syringe access and can withstand autoclaving and sterilization. Available in multiple sizes and liner configurations for reliable vial sealing.

For Use With (Equipment) Glass bottle or vial
Product Type Open Top Screw Cap
Material Phenolic Resin
Certifications/Compliance ISO 9001
55

DWK Life Sciences WHEATON™ One–Sep Polypropylene Septas
SDP

WHEATON™ One–Sep Polypropylene Septas are designed to fit screw caps with 13–425 GPI thread. Made from polypropylene, these black septas provide a reliable seal for laboratory vials and sample containers.

56

DWK Life Sciences DURAN™ Pouring Ring For GLS 80™ Laboratory Bottle
SDP

The DURAN™ Pouring Ring For GLS 80™ Laboratory Bottle permits clean, drop-free pouring from DURAN™ GLS 80 wide-mouth laboratory bottles. Made from PTFE for chemical and thermal resistance, it is compatible with the GLS 80 thread system.

57

DWK Life Sciences DURAN™ Multiport Connector Caps GL 25
SDP

DURAN™ Multiport Connector Caps GL 25 offer 2, 3, or 4 stainless steel (316L) barbed ports for GL 25 DURAN™ bottles. Autoclavable, food-contact certified, and rated to 180°C for reliable use in chemistry, life science, and biopharma labs.

Thread Size (Metric) GL 25
Neck Finish 9 mm
Material PBT
Autoclavable Autoclavable
For Use With (Application) Low volume sampling, Media supply for small bioreactors, Fed-batch bioreactor, Perfusion circuit for cell culture, Oxygenation / aeration of very small samples, Use in a chemistry micro-reactor
58

DWK Life Sciences KIMBLE™ KIMAX™ Closure with Rubber Liner
SDP

KIMBLE™ KIMAX™ Closure with Rubber Liner is a black, phenolic, rubber-lined replacement cap compatible with KIMBLE™ 14250, 14915, and 14925 vessels. Features a cemented-in rubber liner, GPI 28-400 thread finish, and withstands repeated autoclavings.

59

DWK Life Sciences WHEATON™ Solid Top Polypropylene Screw Caps
SDP

WHEATON™ Solid Top Polypropylene Screw Caps feature a poly-vinyl liner to provide a moisture barrier and chemical resistance for use with mild acids, alkalis, solvents, and alcohols. Suitable for use with glass bottles or sample vials.

60

DWK Life Sciences WHEATON™ White Polypropylene Screw Caps with Bonded PTFE Faced Silicone Liner for E-Z Ex-Traction™ Vials
GSA_VA SDP

WHEATON™ White Polypropylene Screw Caps with Bonded PTFE Faced Silicone Liner for E-Z Ex-Traction™ Vials feature a PTFE faced silicone liner ideal for storage and containment of volatile solvents, sensitive compounds, or corrosive chemicals. Autoclavable.

Color White
Closure Liner PTFE/Silicone
Material Polypropylene
Certifications/Compliance ISO 9001
Autoclavable Autoclavable