Provides for extremely high chemical purity and low gas permeability. Wheaton™ Ultra Pure Straight Plug Stoppers are manufactured from an ultra pure bromobutyl formulation.

PBT screw cap with an open top and high temperature and chemical resistance.

High purity PTFE coated silicone septum

Use these stoppers for a variety of applications. Saint Gobain Life Sciences Rubber Stoppers Without Holes are ideal for chemical transfer.

Helps to contain liquids in testubes or flasks.

Protezione ermetica

In polietilene per garantire resistenza, durata e flessibilità. I tappi in gomma conici Buerkle™ sono disponibili in un'ampia gamma di formati.

Tamper evident Screw cap.

Tappo a vite di fissaggio. Tappo a vite in PTFE DURAN™ dotato di guarnizione.

Cap liners with PTFE faced silicone.

Flexible 2 or 3 port GL 45 screw cap for connection cap system

For Falcon Round-Bottom Tubes

Creates an effective seal while PTFE-faced liner protects against chemical attack. Pyrex™ Polyester Screw Caps with PTFE-Faced Liner are ideal for high temperature applications.

DURAN™ bromobutyl rubber closure provide a gas tight seal for all GL 25 and GL 45 laboratory bottles.

Per applicazioni di ricerca e somministrazione di farmaci per via parenterale.

Providing secure closure for a variety of bottle neck sizes. Gravis Black Polypropylene Screw Caps are durable and resilient.

Per garantire un sistema a tenuta ermetica si possono utilizzare chiusure a vite e guarnizioni di ricambio Thermo Scientific™ Nalgene™.

With drip-free pouring ring

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

For maximum sealing of vials with straight wall glass finish

Very low adsorption of the preservatives present in aqueous parenteral solutions - Available in 2-Leg, 3-Leg and Igloo styles.

Very low adsorption of the preservatives present in aqueous parenteral solutions - Available in 2-Leg, 3-Leg and Igloo styles.

Provide airtight covers

Excellent for environmental samples, pharmaceuticals and diagnostic reagents

LDPE construction with sealing rings. Octagonal grip provides easier grasping ability.

Silicone Septum Seal for piercing

Tamper evident cap for wide mouth/short form DIN soda lime glass bottle thread.

Accessory for 2 or 3 port GL 45 connection cap system

Made from red rubber.