Dropping Funnel with PTFE Stopcock, Dual Joints, 10 to 20000 ml

This high-capacity dropping funnel is designed for precise and controlled liquid transfer in chemical and analytical laboratories. Constructed from Borosilicate glass 3.3, it features a PTFE stopcock for excellent chemical resistance and smooth flow regulation.

Unlike standard funnels, this model includes both a top and bottom ground joint, allowing it to seamlessly integrate into complex glassware assemblies such as reflux or reaction systems. Its pear-shaped design ensures complete drainage and minimal residue.

Available in capacities ranging from 10 ml to 20,000 ml, it is supplied with a matching glass stopper for secure closure. Graduation marks are intentionally omitted to enhance versatility across setups.

Key Features:

• Capacity: 10 ml ?C 20,000 ml
• Top and bottom standard taper joints for system integration
• PTFE stopcock: chemical-resistant and low-maintenance
• Pear-shaped body for efficient liquid delivery
• Includes ground glass stopper
• Made of high-purity Borosilicate glass 3.3
• Ideal for organic synthesis, titration, and controlled additions

For custom joint sizes, please select the desired capacity and stopcock type, then leave a note with your required joint specifications in the order. We will manufacture accordingly. If no note is left, default standard joints will be supplied.