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Vinyl-Coated Lead Rings

Stabilize flasks in baths and on the bench.

Manufacturer: fisher science education  F18308-4000

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Catalog No. S90140D

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Description & Specifications


Autoclavable No
Diameter (English) Inner 2.8 in.
Diameter (Metric) Inner 7.11cm
For Use With (Equipment) 1000 to 4000mL Sidearm flasks without disconnecting tubing
Product Type Accessory
Weight (English) 2 lb.
Weight (Metric) 900g

  • Chemical-resistant, vinyl coating prevents glass damage and slippage
  • Multiple sizes and weights available for flasks up to 1.05 gal. (4L)
  • Position on sidearm flasks without disconnecting tubing
  • Adjust diameter to best fit flask or other vessel
  • Use to reduce breakage of glass cylinders by placing around base