Nalgene™ Colored Polypropylene Closures with 38-430 Finish

Reduce chance of cross contamination Opaque white and amber closures protect contents from UV light when used with opaque Nalgene bottles One piece, linerless, with integrally molded seal ring Fit Nalgene narrow-mouth bottles up to 1000mL Well-defined closure knurl makes gripping and capping easy Guaranteed leakproof† when used with Nalgene narrow-mouth bottles Ordering Information: Case of 250. Note: † 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 2 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.