Such Quartz Thermal Block with handle can be used for 8" quartz processing tube. Compare with the conventional ceramic block, quartz thermal block with alumina fiber inside can help achieve higher vacuum level and avoid potential contamination problems.

Inspect your delivery:
Please check package for damages before accepting delivery.
Should damages found, please keep all packaging materials, take pictures, and report immediately to carrier/MTI.

No Warranty:
Kindly note this item is a consumable part, and not covered by warranty. Make sure to inspect for defect(s) thoroughly before use.