PYREX® 250mL Economy Squibb Glass Separatory Funnel with Replaceable PTFE Stopcock and Polyethylene Stopper – 6406-250

The PYREX® 250mL Economy Squibb Glass Separatory Funnel is a durable laboratory instrument designed for liquid-liquid extraction, solvent separation, and chemical sample preparation. It features a pear-shaped glass body, a replaceable No. 4 PTFE Product Standard stopcock assembly, and a No. 22 high-density polyethylene (HDPE) standard taper stopper. The stopcock incorporates a threaded locking nut and collar to prevent accidental disengagement, while the replaceable drip tip helps reduce maintenance and replacement costs. Ideal for pharmaceutical laboratories, chemical testing facilities, biotechnology laboratories, research institutions, and educational laboratories. Corning+1 Key Features - 250mL Capacity: Suitable for small-to-medium-volume liquid-liquid extraction and solvent separation. - Economy Squibb Design: Replaceable components help reduce long-term equipment maintenance costs. - No. 4 PTFE Stopcock: Chemically resistant, replaceable valve assembly for controlled liquid discharge. - Threaded Locking Nut and Collar: Help prevent the stopcock from accidentally falling out during use. - No. 22 HDPE Stopper: High-density polyethylene standard taper stopper provides a convenient closure. - Replaceable Drip Tip: Allows replacement of the outlet without replacing the complete funnel. - 7mm Stem Outer Diameter: Supports controlled liquid drainage. - Durable Laboratory Glass: Suitable for routine laboratory chemical separation procedures. - Complete Assembly: Supplied with the glass funnel, PTFE stopcock assembly, replaceable tip, and polyethylene stopper. - Reusable Construction: Designed for repeated laboratory extraction applications. Specification Details Brand PYREX® Manufacturer Corning Product Number 6406-250 Product Type Economy Squibb Separatory Funnel Capacity 250mL Funnel Style Squibb Separatory Body Shape Pear-Shaped Material Laboratory Glass Body Outer Diameter Approximately 77mm Height Without Stopper Approximately 303mm Stopcock Type Replaceable PTFE Assembly Stopcock Plug Number No. 4 Stopcock Locking Mechanism Screw-Thread Locking Nut and Collar Stopper Type Standard Taper Polyethylene Stopper Number No. 22 Stopper Material High-Density Polyethylene (HDPE) Stem Outer Diameter 7mm Replaceable Drip Tip Yes PTFE Stopcock Included Yes Polyethylene Stopper Included Yes Replacement Polyethylene Stopper Series Corning 7624 Replacement PTFE Stopcock Assembly Series Corning 2116-LSO Replacement Tip Series Corning 6406-GTO Quantity per Pack 1 Piece Quantity per Case 4 Pieces