A supporting ring with an inside diameter of 50mm for use with a retort stand. The ring has a built-in boss-head clamp for attachment to the support rod of the stand. * Plated mild steel with 8mm diameter stem * Boss-head with thumb-screw accepts rods from 8 to 12.5mm dia. * Distance from centre of support to centre of ring: 140mm * Eisco type CH0672A https://elecena.pl/product/27243859/eisco-retort-stand-ring-50mm 2024-11-12 https://elecena.pl/product/27243859/eisco-retort-stand-ring-50mm 2025-04-07 https://elecena.pl/product/27243859/eisco-retort-stand-ring-50mm 2025-05-25 https://elecena.pl/product/27243859/eisco-retort-stand-ring-50mm 2025-08-11