This is a pair of high temperature silicone rubber O rings for OD 76 mm Alumina or quartz tube in high temperature tube furnaces

• Materials: Silicone
• Temperature Resistance: 300 ^oC
• ID: 75 mm (see photo below)
• W: 5 mm (see photo below)
• Used for MTI Tube Furnace, and any OD 76 mm (3'') Alumina or quartz tube as well.
• Excellent for any type of tubing: ceramic, glass, quartz and steel pipe.
• Customized size assembling is available upon request.

OD:   85 mm ID:     75 mm W:      5mm

Warning

Must put a refractory tube block in front of flange ( see picture below ) to avoid heat radiation melt silicone O-ring.  You may order a ceramic block in related products