PYREX® 4000mL Squibb Glass Separatory Funnel with No. 8 PTFE Stopcock and No. 38 Glass Stopper – 6402-4L

The PYREX® 4000mL Squibb Glass Separatory Funnel is a high-quality borosilicate glass laboratory instrument designed for large-volume liquid-liquid extraction, solvent separation, and chemical sample preparation. Featuring a pear-shaped glass body, a No. 8 PTFE Product Standard stopcock, and a No. 38 hollow glass standard taper stopper, the funnel provides controlled liquid discharge and efficient separation of immiscible liquids. Its PTFE stopcock fits into a micro-finished glass barrel, helping prevent sticking and eliminating the need for grease lubrication. Suitable for pharmaceutical laboratories, chemical testing facilities, biotechnology laboratories, research institutions, and industrial quality control applications. Key Features - 4000mL Capacity: Suitable for large-volume liquid-liquid extraction and solvent separation. - Squibb Pear-Shaped Design: Facilitates effective separation and controlled drainage of immiscible liquids. - No. 8 PTFE Stopcock: Chemically resistant straight-bore stopcock for precise liquid discharge. - No. 38 Glass Stopper: Hollow standard taper glass stopper provides a close-fitting closure. - Micro-Finished Stopcock Barrel: Helps minimise sticking and grease contamination. - Borosilicate Glass Construction: Provides excellent chemical resistance and thermal durability. - 210mm Body Diameter: Large-capacity body suitable for laboratory extraction procedures. - 620mm Overall Height: Designed for use with appropriately sized laboratory support stands. - 14mm Stem Outer Diameter: Provides a suitable outlet for controlled liquid drainage. - 90mm Stem Below Stopcock: Facilitates directed liquid discharge into receiving containers. - Replaceable Components: Compatible glass stoppers and PTFE stopcock assemblies are available. - Reusable Construction: Suitable for repeated laboratory extraction procedures. Specification Details Brand PYREX® Manufacturer Corning Product Number 6402-4L Product Type Laboratory Separatory Funnel Funnel Style Squibb Separatory Capacity 4000mL (4L) Material Borosilicate Glass Body Shape Pear-Shaped Body Outer Diameter Approximately 210mm Overall Height with Stopper Approximately 620mm Stopcock Type PTFE Product Standard Stopcock Style Straight-Bore PTFE Stopcock Plug Number No. 8 Stopcock Barrel Micro-Finished Glass Stopper Type Standard Taper Glass Stopper Stopper Number No. 38 Stopper Style Hollow Glass Stem Outer Diameter Approximately 14mm Stem Length Below Stopcock Approximately 90mm PTFE Stopcock Included Glass Stopper Included Grease Lubrication Required No Replacement Glass Stopper Corning 7650-38 Replacement PTFE Stopcock Assembly Corning 7681-8 Quantity per Pack 1 Piece Quantity per Case 1 Piece