PYREX 250mL Kuderna-Danish Replacement Flask with Hooks

The PYREX 2158-250FO 250mL Kuderna-Danish Replacement Flask with Hooks is a replacement flask designed for compatible Kuderna-Danish concentrator assemblies used for concentrating solvent extracts during analytical sample preparation. The flask has a 24/40 outer Standard Taper upper joint and a 19/22 inner Standard Taper lower joint. It incorporates glass hooks for securing the assembled Kuderna-Danish components and is supplied with a pair of stainless-steel springs. Key Features Genuine Corning PYREX® Manufacturer part number 2158-250FO 250mL nominal capacity Replacement flask for Kuderna-Danish apparatus 24/40 outer Standard Taper upper joint 19/22 inner Standard Taper lower joint Glass hooks for securing apparatus components Includes a pair of stainless-steel springs Approx. 220mm height Borosilicate laboratory glass construction Flask only — not the complete Kuderna-Danish apparatus Specification Details Brand PYREX® Manufacturer Corning MPN 2158-250FO Product Type Kuderna-Danish Replacement Flask Capacity 250mL Upper Joint 24/40 Outer Standard Taper Lower Joint 19/22 Inner Standard Taper Retention System Glass Hooks Included Accessory Pair of Stainless-Steel Springs Approx. Height 220mm Material PYREX Borosilicate Glass Configuration Replacement Flask Only Reusable Yes