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Screw caps with silicone inserts, Top Works™ system, Nalgene®

Supplier: Thermo Scientific
PP, white, with platinum cured silicone inserts 

  • Very good chemical resistance, heat resistant up to +135 °C, autoclavable
  • The Top Works™ system includes versions with solid, two or three port connections
  • Suitable for use in the aseptic transfer of liquids from most Nalgene® bottles and carboys

Platinum cured silicone tubing is fused through the stopper to form a single piece closure system.



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Cap size Connection Pk VWR Catalog Number Quantity
38-430 3 port: 1×6,35 mm; 2×3,2 mm 1 734-5043
53B 3 port: 1×3,20 mm; 2×6,35 mm 1 734-5046
53B 2 port: 2×6,35 mm 1 734-5045
53B None (solid insert) 1 734-5044
83B 2 port: 2×6,35 mm 1 734-5048
83B None (solid insert) 1 734-5047
83B 3 port: 1×9,50 mm; 2×6,35 mm 1 734-5049
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