Dropping Funnel Cylindrical, Solid Glass Stopcock
Product Code : EL-F-10108
Quick answer: This dropping funnel has a cylindrical body and a solid glass stopcock key, available with a PE (polyethylene) stopper. It is supplied in five capacities from 50ml to 1000ml, each with a choice of 2.5mm, 4mm or 6mm bore, and is used to add a liquid reagent into a reaction vessel in a controlled stream.
| Specification | Detail |
|---|---|
| Product | Dropping Funnel Cylindrical, Solid Glass Stopcock |
| Capacities offered | 50ml, 100ml, 250ml, 500ml, 1000ml |
| Stopcock type | Solid glass |
| Bore options | 2.5mm, 4mm, 6mm |
| Stopper | Available with PE (polyethylene) stopper |
When a Solid Glass Stopcock Is the Right Choice
A solid glass stopcock key is a lower-cost option than PTFE or needle-valve alternatives, and remains a reasonable choice for light, routine use where the funnel is not in constant daily rotation across different reagents. Glass-on-glass contact means the key benefits from occasional greasing to keep it turning smoothly and sealing well, and it can be more reagent-sensitive than PTFE with certain aggressive chemicals, so buyers working with a wide range of solvents may prefer the PTFE stopcock version instead. The bore size selection works the same way as on the other stopcock variants in this range.
Frequently Asked Questions
How does a solid glass stopcock compare with PTFE?
A solid glass stopcock is a lower-cost option suited to light, routine use, but benefits from occasional greasing and can be more sensitive to certain aggressive reagents than a PTFE stopcock, which needs less maintenance.
What capacities and bore sizes are available?
This dropping funnel is offered in 50ml, 100ml, 250ml, 500ml and 1000ml capacities, each with a choice of 2.5mm, 4mm or 6mm bore.
Does this funnel come with a stopper?
Yes, it is available with a PE (polyethylene) stopper.
Related Products
Explore more from the Funnel range: Dropping Funnel Cylindrical, PTFE Stopcock, Dropping Funnel Cylindrical, Needle Valve Stopcock, and the full Laboratory funnel category.
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Last updated: September 2026.