Nalge 2203 series Leakproof Same design as 1706L80 series, but autoclavable Sizes 1/2 and 1 gallon include size 38-430 cap; 2 gallon size includes 53B cap Autoclavable 1 and 2 gallon sizes have loop on shoulder

Fit Thermo Scientific™ Nalgene™ Narrow Mouth and Wide Mouth Bottle Replacement Closures onto Nalgene narrow mouth and wide mouth bottles.

Autoclavable Two-part assembly For attachment to centrifuge tubes or bottles to prevent leakage during extremely high speed centrifugation. Two-part assembly consists of polypropylene screw closure and a retained silicone gasket. Caps can be written on for easy notation.

Nalge 2204 series Pigmented to provide protection for light-sensitive materials Leakproof Sizes 1/2 and 1 gallon include size 38-430 cap; 2 gallon size includes 53B cap Autoclavable 1 and 2 gallon sizes have loop on shoulder