Retort Rings
Avantor supplies retort rings for the support of funnels, flasks, test tubes, and burettes in retort stands. Open rings allow easy removal of sample containers and feature PVC-coated aluminum construction to prevent scratching of glassware. Cast iron and wire rings with optional clamps are also available. Long extension arms provide easy connections to frames and stands and are sold in a variety of lengths and ring diameters. Holders to mount rings to stands and frames are also supplied at Avantor.
VWR® Talon® PVC Coated Open Extension Rings
Ideal for supporting funnels, round-bottom flasks, reaction vessels, and other apparatuses requiring lower support.
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Support Ring and Clamp
Durable plated-steel ring clamp holds labware securely on stands for heating or experiment setups.
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Extension Rings
Made of heavy metal with side rod for insertion in clamp holders.
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Cast Iron Support Rings
These zinc-plated support rings are made of durable cast iron.
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Eisco Support Rings with Bosshead Clamp, Steel
Closed metal support rings with long stems and attached bosshead clamps great for supporting funnels.
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Eisco Support Rings with Stem, Steel
Closed metal support rings with long stems great for supporting funnels.
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Eisco Support Rings with Bosshead Clamp, Cast Iron
Heavy closed cast iron support rings with integral bosshead clamps great for supporting funnels.
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Extension Support Rings, United Scientific Supplies
Extension support for holding funnels.
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Steel Rod Support Rings, United Scientific Supplies
Steel rings for holding funnels.