Chromatography

11MM STOPPER GREY BUTYL This 11mm gray butyl stopper is used with Wheaton pre-scored 2mL lyophilization Vacules. It is a 2-Leg lyophilization stopper. (144 per CS )

Septum fluoropolymer resin-faced gray butyl. A special molded seal with fluoropolymer resin insert. Sealing surfaces of butyl and fluoropolymer resin effect a more positive seal than plain fluoropolymer resin-faced septum. For mouth OD: 20mm. (100 per CS )

Red Aluminum Seal One-Piece Shelf packs of 100. Fits GPI finish: 11mm.

Standard Aluminum Seal One-Piece Shelf packs of 100. Fits GPI finish: 20mm. (1000 per CS )

Aluminum Seal Blue. Center disc tear-out. Unlined. One-piece center disc tears out exposing top of stopper to syringe. Shelf packs of 100. For mouth OD: 13mm.

Aluminum Seal Tear-off. Green. Stopper can be punctured by syringe or seal can be completely removed and contents poured from bottle. Shelf packs of 100. For mouth OD: 13mm. (1000 per CS )

Aluminum Seal Tear-off. Green. Stopper can be punctured by syringe or seal can be completely removed and contents poured from bottle. Shelf packs of 100. For mouth OD: 20mm.

Aluminum Seal Tear-off. Stopper can be punctured by syringe or seal can be completely removed and contents poured from bottle. Shelf packs of 100. Standard. For mouth OD: 30mm.

Aluminum Seal with PTFE/Red Rubber Liner For mouth OD: 11mm. Red. (1000 per CS )

Aluminum Seal Center disc tear-out. fluoropolymer resin/red rubber septum. Faced with 2 mil fluoropolymer resin film. For filling or emptying contents with a syringe. Shelf packs of 100. Standard. For mouth O.D.: 13mm.

Blue Aluminum Seal One-Piece Shelf packs of 100. Fits GPI finish: 11mm.

Septa for Open Top Cap 13mm fluoropolymer resin/Natural Silicone Septa Septa Size: 13mm. Wheaton 15x45 Screw Top Vials are designed primarily for use in the Waters WISP 48 position and other autosamplers. (100 per CS )