PYREX 31770-125S Gas Washing Stopper with Coarse Fritted Cylinder

The PYREX 31770-125S Gas Washing Stopper with Coarse Fritted Cylinder is a precision-manufactured laboratory glass stopper assembly designed as a replacement component for compatible PYREX 125 mL gas washing bottles. Manufactured by Corning, this reusable laboratory accessory features a 29/42 standard taper glass stopper, an integrated gas inlet tube and a 12 mm diameter coarse fritted glass cylinder for distributing incoming gas through suitable washing liquids. The coarse fritted cylinder has a nominal pore distribution of 40–60 micrometres, helping disperse gases into small bubbles and improve gas-liquid contact during washing, humidification and absorption procedures. The stopper is designed for the PYREX 31770-125C gas washing bottle, allowing laboratories to replace damaged glass stopper assemblies without purchasing a complete bottle. Its durable glass construction makes it suitable for routine applications in chemical laboratories, biotechnology facilities, pharmaceutical research institutions, universities and scientific research centres. Important: This product includes the gas washing stopper assembly with coarse fritted cylinder only. The 125 mL glass bottle is not included. Key Features - Original PYREX laboratory glassware accessory manufactured by Corning. - Replacement stopper assembly for compatible 125 mL gas washing bottles. - Compatible with PYREX 31770-125C. - Coarse fritted glass cylinder with 40–60 µm nominal porosity. - Approximately 12 mm diameter fritted cylinder. - Standard taper 29/42 glass stopper. - Integrated glass gas distribution tube. - Supports uniform gas dispersion through washing liquids. - Suitable for gas washing, humidification and absorption. - Reusable laboratory glass construction. - Designed for replacing damaged gas washing stopper assemblies. - Supplied as one stopper assembly without the glass bottle. Specification Details Brand PYREX Manufacturer Corning Catalogue Number 31770-125S Product Type Gas Washing Stopper Assembly Material Laboratory Glass Compatible Bottle Capacity 125 mL Compatible Complete Model 31770-125C Stopper Type Standard Taper Glass Standard Taper Joint 29/42 Fritted Distributor Glass Cylinder Frit Porosity Coarse Nominal Pore Distribution 40–60 µm Fritted Cylinder Diameter 12 mm Gas Inlet Tube Included Glass Bottle Not Included Reusable Yes Quantity per Pack 1 Piece Quantity per Case 1 Piece Applications Gas Washing, Gas Absorption, Gas Humidification