PYREX 31760-250EC Gas Washing Bottle 250 mL with Extra Coarse Fritted Disc

The PYREX 31760-250EC Gas Washing Bottle 250 mL with Extra Coarse Fritted Disc is a durable, reusable laboratory glass apparatus designed for gas washing, gas absorption, humidification and gas-liquid contact during scientific and analytical laboratory procedures. Manufactured by Corning from PYREX borosilicate glass, this tall-form gas washing bottle features a transparent cylindrical body, a stable hexagonal base and a removable hollow glass stopper incorporating a gas distribution tube. The apparatus is equipped with a 20 mm diameter extra-coarse fritted glass disc with a nominal pore distribution of 170–220 micrometres. This distributor allows incoming gas to pass through suitable washing liquids as dispersed bubbles, offering lower gas-flow resistance than finer fritted discs. Gas enters through the central inlet tube, passes through the submerged fritted disc, bubbles through the washing medium and exits through the sidearm outlet. The PYREX 31760-250EC is particularly suitable for humidifying carbon dioxide-air mixtures in cell culture incubators and for laboratory applications requiring controlled gas-liquid contact. Its durable and transparent construction makes it suitable for chemical analysis laboratories, pharmaceutical research centres, biotechnology facilities, universities and scientific research institutions. Key Features - Original Corning PYREX laboratory glassware. - 250 mL nominal capacity. - Durable borosilicate glass construction. - Tall cylindrical design with stable hexagonal base. - Extra-coarse fritted glass disc for gas distribution. - Nominal pore distribution of 170–220 µm. - Approximately 20 mm diameter fritted disc. - Standard taper 40/50 hollow glass stopper. - Approximately 8 mm outside diameter inlet/outlet tubing. - Lower gas-flow resistance than finer fritted glass distributors. - Suitable for gas washing, absorption and humidification. - Supports humidification of carbon dioxide-air mixtures. - Transparent construction for monitoring gas bubbling and liquid levels. - Reusable for repeated laboratory applications. - Supplied as one complete gas washing bottle. Specification Details Brand PYREX Manufacturer Corning Catalogue Number 31760-250EC Product Type Gas Washing Bottle with Extra Coarse Fritted Disc Material Borosilicate Glass Capacity 250 mL Bottle Style Tall Form Bottle Shape Cylindrical Base Design Hexagonal Neck Style Long Stopper Type Hollow Glass Standard Taper Stopper 40/50 (manufacturer description) Fritted Distributor Glass Disc Frit Porosity Extra Coarse Nominal Pore Distribution 170–220 µm Fritted Disc Diameter 20 mm Inlet/Outlet Tubing Outside Diameter 8 mm Approximate Height Without Stopper 250 mm Approximate Height With Stopper 300 mm Approximate Outside Diameter 40 mm (manufacturer's online table) Colour Transparent Sterility Non-Sterile Reusable Yes Quantity per Pack 1 Complete Bottle Quantity per Case 1 Complete Bottle Applications Gas Washing, Gas Humidification, Gas Absorption