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.
Extension Rings
Supplier: VWR International
Made of heavy metal with side rod for insertion in clamp holders.
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VWR® Talon® Open Rings
Supplier: VWR International
Lightweight rings mount funnels, boiling flasks, and other irregular-shaped objects to lab frames.
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VWR® Talon® PVC Coated Open Extension Rings
Supplier: VWR International
Ideal for supporting funnels, round-bottom flasks, reaction vessels, and other apparatuses requiring lower support.
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Cast Iron Support Rings, United Scientific Supplies
Supplier: UNITED SCIENTIFIC SUPPLIES
Support rings for funnels of all sizes.
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Support Rings, Wire, Humboldt
Supplier: HUMBOLDT MFG CO
Formed, bright basic wire circle is welded to shank (except 2" size)
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Support Rings, Extension, Iron, Humboldt
Supplier: HUMBOLDT MFG CO
Forged of hot-rolled wire with integral plain shank.
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Cast Iron Support Rings
Supplier: UNITED SCIENTIFIC SUPPLIES
These zinc-plated support rings are made of durable cast iron.
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Support Rings, Cast Iron, Humboldt Manufacturing
Supplier: HUMBOLDT MFG CO
Distance from the center of the ring to the center of the clamp is 108mm ( 41/4")
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Hook Collars
Supplier: UNITED SCIENTIFIC SUPPLIES
Quickly add a hook to a support rod.
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Extension Support Rings, United Scientific Supplies
Supplier: UNITED SCIENTIFIC SUPPLIES
Extension support for holding funnels.
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Support Rings with Clamp, Chemglass
Supplier: CHEMGLASS INC.
Solid ring with built in clamp for attachment directly to support rod
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