Round Bottom Rubber Flask Holder 90 mm Black

90 mm Black Rubber Flask Holder

This rubber support is listed in a 90 mm format for compatible round-bottom laboratory flasks. Check the actual cradle dimensions and vessel shape before ordering.

Choosing a suitable flask support

Match the holder to the flask's bottom curvature and the space available on the bench. A nominal 90 mm size does not guarantee a universal fit, and a holder should not be used as a substitute for a properly secured stand when the apparatus requires one.

Placement and care

Use on a stable, level work surface and check that the vessel rests securely without rolling or concentrated stress. Keep the support clean and inspect it for wear before use. No load, temperature, or chemical-resistance rating is supplied in this listing; verify suitability before exposure to heat or chemicals.

Frequently asked questions

Does 90 mm establish a universal flask fit? No. Match the holder to the actual vessel geometry and support requirements.

Can it support a heated flask? Do not assume heat compatibility without a manufacturer rating for the support material.

Related product: Cork Flask Support Rings.