About this item

• Cast iron support ring with boss head clamp and thumbscrew
• Set comes with 3 retort rings in different diameters: 60mm, 80mm, and 100mm (1 for each diameter) can securely hold various sizes of bottles and instruments
• Made of high quality metal, ensuring it durable, corrosion resistant, rust proof and sturdy constructed
• Commonly used for chemical reactions, filtrations, and experiments in laboratories, factories, schools, hospitals, researches, and so on
• StonyLab ensures high quality products and premium customer service
• ASIN: B07TV1QH4N