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NALGENE® Polypropylene Filling/Venting Closures, Thermo Scientific


2135-8303 2162-0831 2162-0830 2162-0531
Polypropylene closures for aseptic liquid transfer of media, biological reagents, pure water, and chemicals. Frequently used to feed or receive from bioreactors and fermentors. Can be used with carboys or bottles that accept 53B or 83B closures. Filling/Venting Closures are provided with two pieces of tissue culture-grade tubing for aspiration, dispensing, and filling splash guard. The TopWorks closure includes two 6.4mm (1/4") rubber tubes and one 9.5mm (3/8") rubber tube cured to and passing through a silicone rubber stopper/liner in an 83B closure. It is compliant with USP Class VI requirements. All closures are autoclavable.



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Filling/Venting Closures
Supplier No. Catalog Number Unit List Price Quantity
12.7 mm (1/2") 83B 2162-0830 2162-0830 T-2729-1 Case of 6 Retrieving
Each Retrieving
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