Standard Stoppers

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13mm, 20mm & 32mm West Bromobutyl and Chlorobutyl Injection and Freeze Dry Rubber Stoppers

Rubber Stoppers manufactured by West including Injection Stoppers and Freeze Dry (Lyophilisation) Stoppers to suit 13mm, 20mm and 32mm necked vials and bottles.

Rubber stoppers made from bromobutyl, chlorobutyl and silicone materials.

For further examples of Injection Stoppers and Freeze Dry Stoppers please see our page on West's hi-tech FluroTec® Stoppers.

 
Stock Sizes - West Rubber Stoppers
Item Code West Art. Description Formulation
A INJW13RTS 1104 13 mm injection stopper, silicone A, Ready-to-Sterilise (RtS) 4023/50 Bromobutyl grey
B INJW20RTS 1071 20 mm injection stopper, silicone A, Ready-to-Sterilise (RtS) 4023/50 Bromobutyl grey
C INJW20S 1185 20 mm injection stopper, no free silicone, foil bag 8763/40 Silicone transparent
D INJ20WC 1213 20 mm injection stopper, no free silicone, poly bag 4601/45 Chlorobutyl white
E FDW13WRS 1079 13mm lyophilisation stopper, silicone 4.5, Westar RS® 4023/50 Bromobutyl grey
F FDW20RTS 1319 20mm lyophilisation stopper, silicone A, Ready-to-Sterilise (RtS) 4023/50 Bromobutyl grey
G INJW32G2RTS 4443 32mm infusion stopper, silicone A, Ready-to-Sterilise (RtS) 4023/50 Bromobutyl grey

 

Ready to Sterilize (RtS) and Westar® RS (WRS): Stoppers are washed with a final rinse in WFI and packed in a class 100 clean room into a STERIlizableBAG. WestarRS product is provided with a higher level of certification than the RtS equivalent.

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