Lead rings fit neatly around the neck of filtering flasks with side-arm tubing connections without disconnecting the tubing.
- Fits: 1000-4000mL Flasks
- Weight: 908gm (2.0lb)
- Stabilizes vessels in water baths or on the benchtop
- Open ring; flexible enough to be pulled apart to accommodate a wider vessel
- Coated with green Vikem® vinyl to protect glassware
- Available in four diameter/weight combinations