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<p>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.</p>

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.


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Product Image-28641-012

VWR® Talon® Open Rings

Supplier: VWR International
Description: Lightweight rings mount funnels, boiling flasks, and other irregular-shaped objects to lab frames.

Product available on GSA Advantage®

Product Image-97019-058

VWR® Talon® PVC Coated Open Extension Rings

Supplier: VWR International
Description: Ideal for supporting funnels, round-bottom flasks, reaction vessels, and other apparatuses requiring lower support.

Product available on GSA Advantage®

Product Image-89059-756

Rodaviss® Loosening Ring, Polyamide, Ace Glass Incorporated

Supplier: Ace Glass
Description: Loosening rings are designed to assist in freeing frozen joints.

Small Business Enterprise Product available on GSA Advantage®

Product Image-470343-694

Eisco Support Rings with Bosshead Clamp, Steel

Supplier: Wards
Description: Closed metal support rings with long stems and attached bosshead clamps great for supporting funnels.

Product Image-470149-460

Extension Rings

Supplier: Shiv Dial Sud & Sons
Description: Made of heavy metal with side rod for insertion in clamp holders.

Product Image-71001-716

Open Ring Supports with Extension Arms, Ace Glass Incorporated

Supplier: Ace Glass
Description: Open ring supports with long extension arms for supporting glassware from the bottom, such as separatory funnels and powder funnels

Small Business Enterprise Product available on GSA Advantage®

Product Image-76293-644

Cast Iron Support Rings, United Scientific Supplies

Supplier: United Scientific Supplies
Description: Support rings for funnels of all sizes.

Product Image-470157-178

Cast Iron Support Rings

Supplier: United Scientific Supplies
Description: These zinc-plated support rings are made of durable cast iron.

Product Image-10034-380

Support Rings, with Openings, Chemglass

Supplier: Chemglass
Description: Support rings with openings.

Small Business Enterprise

Image Unavailable-89370-318

Support Rings, Wire, Humboldt

Supplier: Humboldt Manufacturing
Description: Formed, bright basic wire circle is welded to shank (except 2" size)

Product Image-89029-292

Support Rings, Chemglass

Supplier: Chemglass
Description: PTFE support ring used to support round bottom flasks or cylindrical reaction vessels.

Small Business Enterprise

Product Image-60135-041

Support Rings, Extension, Iron, Humboldt

Supplier: Humboldt Manufacturing
Description: Forged of hot-rolled wire with integral plain shank.

Small Business Enterprise

Image Unavailable-60120-022

Support Rings, Cast Iron, Humboldt Manufacturing

Supplier: Humboldt Manufacturing
Description: Distance from the center of the ring to the center of the clamp is 108mm ( 4<sup>1</sup>/<sub>4</sub>")

Product Image-470006-700

Hook Collars

Supplier: United Scientific Supplies
Description: Quickly add a hook to a support rod.

Product Image-470345-984

Eisco Support Rings with Bosshead Clamp, Cast Iron

Supplier: Wards
Description: Heavy closed cast iron support rings with integral bosshead clamps great for supporting funnels.

Product Image-76293-342

Extension Support Rings, United Scientific Supplies

Supplier: United Scientific Supplies
Description: Extension support for holding funnels.

Inquire for Price
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
To process your orders without delay, please provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:

  • State issued document with your organization's Federal Tax ID Number
  • State issued document with your organization's Resale Tax ID Number
  • City or County issued Business License
  • State Department of Health Services License
  • Any other ID issued by the State that includes the business name & address

* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.

-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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