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Nalgene® Top Works™ Aseptic Closure System, Silicone, for Bottles and Carboys, Thermo Scientific


Nalgene® Top Works™
2135-8303 2135-5310 2135-5300 2135-8302 2135-5302 2135-5303 2132-1003 2135-3803 2135-8300
Provides an aseptic seal for transferring high-purity fluids

Eight configurations permit precise matching of Top Works components to bottles and carboys. Polypropylene closures have center holes. They are modified to clamp a silicone stopper onto the bottle or carboy, creating a primary elastomeric seal. High-purity, platinum-cured silicone tubing ensures the fluid contact areas are crevice-free, which helps eliminate cross-contamination.

Materials are food-grade and noncytotoxic. Complies with U.S.P. Class VI requirements. Autoclavable.

For use with 125 mL to 50 L plastic bottles and carboys.

Delivery information: Solid insert units are complete with closure and insert. Two-port insert units include closure, two-port insert, and two pieces of 6.35mm (1/4") I.D. tubing. 21020-216 includes closure, three-port insert, one piece of 9.5mm (3/8") I.D. tubing, and two pieces of 6.35mm (1/4") I.D. tubing. 21020-210 includes closure, three-port insert, one piece of 3.175mm (1/8") I.D. tubing, and two pieces of 6.35mm (1/4") I.D. tubing. 21020-204 is complete with closure, three-port insert, one piece of 6.35mm (1/4") I.D. tubing, and two pieces of 3.175mm (1/8") I.D. tubing.

Caution: Note: Not for use when creating pressure or vacuum conditions with containers that are not rated for pressure or vacuum applications. Not intended for invasive use.



Expand All / Collapse All
Description Fits Tubing I.D. Cap Size Supplier No. Catalog Number Unit List Price Quantity
Three-Port Inserts One 3.2 mm (1/8") and Two 6.4 mm (1/4") GL 45 PSF 2132-1003 T-2729-2 Case of 1 Retrieving
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