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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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121 – 135 of 1,300 results
121

DWK Life Sciences Wheaton™ Low-Density Extended Controlled Dropper Tips (13mm)
SDP

13mm extended controlled dropper tip made of LDPE (Low Density Polyethylene)

Drop Size 41 μL
For Use With (Equipment) Plastic dropping bottle
Product Type Dropper Tip
Certifications/Compliance ISO 9001
122

DWK Life Sciences Wheaton™ PBT Screw Caps
SDP

Withstands temperatures up to 200°C (392°F)

123

DWK Life Sciences DURAN™ GL S 80™ Screw Cap for Laboratory Glass Bottles
SDP

Permits opening and closing of the DURAN™ GLS 80 bottle with only a three-quarter turn

124

DWK Life Sciences Wheaton™ Polypropylene Caps for Wheaton Dropping Bottles - Red
SDP

Screw cap made of radiation grade polypropylene

Color Red
Material Polypropylene
Certifications/Compliance ISO 9001
125

DWK Life Sciences Wheaton™ Polypropylene Caps for Wheaton Dropping Bottles - Purple
SDP

Screw cap made of radiation grade polypropylene

For Use With (Equipment) Plastic dropping bottle
Product Type Polypropylene Cap
Color Purple
Material Polypropylene
Certifications/Compliance ISO 9001
126

Thermo Scientific™ Nalgene™ Closures for Dropper Bottles: Bulk Pack
GREENER_CHOICE

Order these closures, which are available in multiple colors to help identify reagents, to complete your dropper bottle system.

For Use With (Equipment) Dropper Bottles 312750 and 312751.
Product Type Dropping Bottle Screw Cap
Neck Finish 15-415
No. per Case 2000
Material Polypropylene
Certifications/Compliance Manufactured in compliance with ISO 13485:2003 quality requirements. Dropper Bottle Closures meet the requirements of 21CFR177.1520 for food and beverage use, USP Class VI.
No. per Pack 2000
Closure Material Polypropylene
Closure Included Yes
127

DWK Life Sciences DURAN™ Screw Caps for GL S 80™ Tube Connection System
SDP

Made from PP and PTFE this flexible modular system - five different hose diameters (3.2 mm; 6.0 mm; 8.0 mm; 10.0 mm and 12.0 mm) can be connected

128

DWK Life Sciences Wheaton™ White Polypropylene Caps With PTFE Faced Foamed Polyethylene Liner
SDP

Bonded PTFE faced silicone liner ideal for storage of volatile solvents, sensitive compounds and corrosive chemicals

For Use With (Equipment) Glass bottle or vial
Product Type Polypropylene Cap
Color White
No. per Case 144 Cs.
Material Polypropylene
Certifications/Compliance ISO 9001
Liner Material PTFE/Polyethylene
129

DWK Life Sciences Wheaton™ Black Phenolic Linerless Screw Caps
SDP

With open top that provides access with syringes

130

DWK Life Sciences DURAN™ Stirred Bottle Reactor, PP / PTFE / PEEK / Stainless Steel Contact surfaces
SDP

Easy-to-use GL 45 lab bottle based reactor system with tubing connectors for use with magnetic stirrers.

Thread Size (Metric) GL 45
Quantity 1 Ea.
Material Polypropylene,PTFE,PEEK,Stainless Steel
Autoclavable Autoclavable
For Use With (Application) Simple, low cost, bioreactor; Simple continuous flow stirred reactor; Mixing liquids, samples or reagents; Photo-bioreactor
131

DWK Life Sciences DURAN™ GL 45 Red Pouring Rings For Screw Caps
SDP

ETFE pouring ring

132

DWK Life Sciences DURAN™ GL 18 Screw Cap for Laboratory Glass Bottles
SDP

High leak tightness through use of PTFE coated silicone seal. More chemically resistant than PP screw cap.

133

DWK Life Sciences™ DURAN™ Open-top Screw Cap with Central Aperture
SDP

Open-top cap with central aperture suitable for use with bromobutyl stoppers, silicone piercing septa or glassware connections.

134

DWK Life Sciences Kimble™ Kontes™ Storage Caps for HPLC Ultra-Ware Plastic-Coated Conical Bottom Reservoirs
SDP

135

DWK Life Sciences DURAN™ TILT GL 56 Screw Cap
SDP

Made of polypropylene