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

High purity, soft silicone rubber for easy needle penetration and optimal resealability

Use these stoppers for a variety of applications. Saint Gobain Performance Plastics™ Rubber Stoppers Without Holes are ideal for chemical transfer.

Helps to contain liquids in testubes or flasks.

Protezione ermetica

Manufactured with polyethylene for strength, durability and flexibility. Buerkle™ Polyethylene Bungs are available in a wide range of sizes.

Secure screw cap. DURAN™ PTFE Screw Cap has seal.

Suitable for PBT screw caps and tamper-evident screw caps. Good chemical resistance due to PTFE coating. Silicon is peroxidically cured. Autoclavable.

Per il trasferimento di terreni liquidi in un sistema chiuso e sterile. I tappi a vite DURAN&trade a 2 porte sono parte di un sistema modulare e flessibile.

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.

For Falcon Round-Bottom Tubes

DURAN™ bromobutyl rubber closure provide a gas tight seal for all GL45 laboratory bottles.

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

Providing secure closure for a variety of bottle neck sizes. Parisienne de Verrerie™ 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™.

Saint Gobain Performance Plastics™ Pre-Drilled Conical Rubber Stoppers for use with specially designed dip tubes or vent configurations.

Order these closures to complete the Thermo Scientific™ Nalgene™ Dropper Bottle System. Closures fit dropper bottles 312750 and 312751.

With drip-free pouring ring

Excellent for environmental samples, pharmaceuticals and diagnostic reagents

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

Provide airtight covers

For maximum sealing of vials with straight wall glass finish

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

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

Da utilizzare con flaconi quadrati con collo largo

In gomma siliconica. Le guarnizioni in gomma siliconica DURAN™ vengono utilizzate con tappi con filettatura GL con apertura per perforazione.

Da utilizzare con flaconi da laboratorio in vetro DURAN™ con filettatura DIN