Adamas-Beta 60ml Glass Constant Pressure Graduated Addition Funnel with Double PTFE Stopcocks - 19/22 Joint, Equalizing Dropping Funnel for Chemistry Lab Experiments | Precise Liquid Measurement for Titration, Distillation & Organic Synthesis

About this item Advantages - When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure addition funnel has an upper connected tube, which can balance the air pressure without opening the stopper. Design - The constant pressure addition funnel can keep the internal pressure unchanged, measure the gas volume more accurately . Premium Material - Made of high-quality glass, durable and reusable, can withstand typical laboratory thermal variations in Chemistry processes. Specification - various specifications are availiable,25ml,60ml,125ml,250ml,500ml.Glass stopcock and double PTFE stopcock are for your choice. Warranty - Glassware is fragile, if received damaged, please don't hesitate to contact us,we will solve it until satisfied.