Flask & Funnel Stands

Check that the flask stand's ring diameter suits the round-bottomed flask sizes you use most often, so the flask sits securely without wobbling.

A funnel needs to be held at a fixed height above a receiving flask, so a wooden or metal clamp stand suits filtration better than a simple resting ring.

Rubber and silicone rings resist most common lab chemicals, while a wooden funnel stand is better suited to general, non-corrosive setups.

Simple ring stands stack easily for compact storage, useful when you have several round-bottomed flasks to keep upright on a shelf.

A round-bottomed flask has no flat base, so it cannot stand upright on its own. A ring stand supports the curved glass and keeps it stable on the bench or shelf.

Match the stand's ring diameter to your flask sizes, since a ring that is too small won't support the flask properly and one that's too large won't centre it correctly.

Most funnel stands with a clamp arm can also hold separating funnels or other narrow-necked glassware, as long as the clamp opening fits the item securely.

Yes, rubber and silicone flask stands generally resist common acids, bases, and solvents, though it's worth checking the specific material against unusual reagents.

Make sure the funnel stand's clamp is tightened securely around the funnel stem, and that the base sits flat and stable on the bench before you start pouring.