Iron Laboratory Support Rings — sturdy iron cup and retort rings available in multiple sizes to meet different laboratory needs. Why choose this support ring Secure, stable support for glassware and instruments during experiments, minimizing wobble and risk of spills. Versatile sizes allow selection of the correct diameter for beakers, funnels, separating funnels and other apparatus. Durable iron construction designed for repeated laboratory use. Key features Material: iron — robust, long-lasting support for routine lab tasks. Multiple diameters/sizes available so you can pick the ring that matches your equipment. Functions: cup holder, retort/support ring, separating funnel support, stable piston holder. Stable contact and load distribution to hold instruments reliably during reactions, filtrations and manipulations. Performance and compatibility Holds separating funnels and other vessels securely in a vertical or angled setup. Serves as a cup/beaker holder for heating, mixing or transferring liquids. Designed for lab use in classrooms, hospitals, research facilities and industrial labs. Intended for mounting on standard laboratory support stands and rods (retort stands) to form part of a stable apparatus. Practical applications (specific use scenarios) Liquid-liquid extraction: mount a separating funnel in the appropriately sized ring to perform controlled separations without tipping or movement. Vacuum or gravity filtration: secure a funnel or filter cup in the ring above a receiving flask to maintain alignment and speed up set-up. Routine experiments and demonstrations: use as a cup/beaker holder for heating, titration set-ups or staged reaction work in teaching labs and research benches. What you get A selection of iron support rings in various diameters to match common laboratory glassware. A reliable, reusable support component that simplifies apparatus assembly and improves experiment safety and repeatability. Ordering tip Choose the ring diameter that most closely matches the outer diameter of the vessel you intend to support to ensure a secure fit and stable performance.