Thistle Funnel, 9.8" (25cm) - Thick, Stout Wall Design - Eisco Labs

• THISTLE || Thistle dropping/separatory funnel with 250mm diamater - For filling burettes, barometer tubes, manometers, etc.
• TRANSPARENT & DURABLE || Made of high quality Borosilicate 3.3 glass - Transparency allows for high visibility
• STOUT WALLED || Funnel is stout walled
• GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use

Thick walled glass thistle funnel from Eisco Labs. 11.5" total length, 9.5" stem length. Reservoir is 1.5" in height with a 1.5" diameter and an interior diameter of 1". The outer diameter of the stem is .5" and the inner diameter is 2/16". This is a great unit for adding liquid to a narrow necked flask or other similar piece of lab ware.
Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.