Bottle Cap Liners

Bottle cap liners, which sit between a cap and the bottle, are manufactured for many specialized purposes, including providing chemical resistance, acting as moisture barriers and preventing leakage. The primary function of a bottle cap liner is to properly seal a bottle, making chemical compatibility highly important. Vinyl-lined caps are suitable for medical and chemical applications, including mild acids, alkalis and solvents, as well as alcohols and oils. PTFE-lined caps are resistant to attack from virtually all chemicals at room temperature, while rubber lined caps are autoclavable and resistant to moisture vapor with relatively low gas transmission. Polyethylene lined caps are suited for non-oil products filled at room temperature and offer a low moisture vapor transmission rate and good chemical resistance.

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Pyrex™ Polypropylene Pouring Rings

Ensures drip-free pouring. Insert Pyrex™ Polypropylene Pouring Ring into appropriately sized bottle neck.

Pricing and Availability
Specifications

For Use With (Equipment)	media lab bottles, Series 1516, 1517, 1518, 1519, 1520, 1523 and 1524
Color	Clear
Quantity	10/PK.
Material	Polypropylene

Pyrex™ Polypropylene Pouring Rings

Ensures drip-free pouring. Insert Pyrex™ Polypropylene Pouring Ring into appropriately sized bottle neck.

Pricing and Availability

DWK Life Sciences DURAN™ Replacement Cap Liner, PTFE-Coated, Peroxide cured silicone

Cap liners with PTFE faced silicone.

Pricing and Availability
Specifications

Quantity	10/Pk.
Material	Silicone,PTFE,VMQ
Autoclavable	Autoclavable
For Use With (Application)	Replacement cap liner for red PBT caps

Pyrex™ ETFE Pouring Rings

Prevent drips while pouring. Pyrex™ ETFE Pouring Rings work well with high temperature applications.

Pricing and Availability
Specifications

For Use With (Equipment)	Media-lab 1516, 1517, 1518, 1519 and 1520 series bottles
Color	Red
Quantity	10/PK.
Material	ETFE
Autoclavable	Not Autoclavable
Sterility	Dry Heat Sterilized

Alpha Packaging™ Liner Board for Bottle Caps

Use Alpha Packaging™ Liner Board for Bottle Caps to reinforce the inner lining of bottle caps.

Pricing and Availability
Specifications

Product Type	Reinforcement for Cardboard Cap
For Use With (Application)	Bottle

Alpha Packaging™ Screw Cap

Pricing and Availability

DWK Life Sciences DURAN™ GLS 80™ Wide Mouth Bottle Connection System, Screw Cap GLS 80™, 4-Ports, GL 18 Thread

Flexible GLS 80™ connection system for the use of semi-rigid hoses.

Pricing and Availability
Specifications

Diameter (Metric)	87 mm
Quantity	1 Ea.
Material	Polypropylene,PTFE
Autoclavable	Autoclavable
For Use With (Application)	Fluid transfer; Supply of liquid into bioreactors; Supply of reagents to instruments; Photo-bioreactor

Lenz Laborglasinstrumente™ Silicone Seals

Pricing and Availability

DWK Life Sciences DURAN™ Premium Screw Cap Replacement Cap Liner

Screw bottle closure with cap liner sealing that offers higher temperature and chemical resistance.

Pricing and Availability
Specifications

Description	Replacement cap liner
Quantity	10/Pk.
Material	PFA,PTFE,Silicone
Autoclavable	Autoclavable
For Use With (Application)	Autoclaving of media and reagents; Preparation of media and reagents; Reservoir cap for supplying laboratory instruments; Port assemblies for spinner flasks, and cell culture vessels; Single port vent for autoclaving media in large bottles; Transport and shipping