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Thermo Scientific™ Nalgene™ HDPE Closures: Sterile, Bulk Pack

Seal PET/PETG square media bottles with Use Thermo Scientific™ Nalgene™ HDPE Closures, which provide a reliable and leakproof† seal.

Manufacturer:  Thermo Scientific™ 3421510240

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Catalog No. 02-923-23A

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Seal PET/PETG square media bottles with Use Thermo Scientific™ Nalgene™ HDPE Closures, which provide a reliable and leakproof† seal. These reliable high density polyethylene closures are gamma irradiated to provide a 10-6 Sterility Assurance Level (SAL).

Natural HDPE Closures
  • Available in 20-415 finish, 24-415 finish and 38-430 finish
  • Animal Derived Component (ADC) free
  • Fit Nalgene PET and PETG Media Bottles that are sold separately without closures

Note: Closures only fit Thermo Scientific Nalgene bottles



USP Class VI, USP <661>, European Pharmacopeia for Abnormal Toxicity (modified), non-cytotoxic, non-hemolytic, non-pyrogenic.
Closure for Media Bottles
Nalgene PET/PETG square media bottles
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Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement. The term “leakproof” applies to Thermo Scientific Nalgene products that meet the following criteria: a) Bottle/flask/funnel closure systems with closures smaller than 100mm, after they are filled with water, inverted, withstand air pressure of 2psig for two minutes, and no water escapes;. b) Bottle/funnel/flask closure systems of larger than 100mm after they are filled with water, inverted for 15 minutes, and no water escapes. Note: these tests, using other liquids, may not yield the same results. To ensure safe usage, customers are advised to test Thermo Scientific Nalgene bottles and closures under conditions of their planned applications. Thermo Scientific Nalgene products are leakproof at ambient temperature and pressure when used with their Nalgene closures.