QTB4735 is a quartz thermal block for the 5" quartz processing tube, which consists of two pieces of quartz plates and two alumina connectors.

Inspect your delivery:
Please check the package for damages before accepting delivery.
Should damages be 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.