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Custom Reaction Blocks 
J-KEM makes hundreds of custom reaction blocks for virtually any application.

To see more examples see our Custom Reaction Block Hall of Fame

Custom reaction blocks for:
  • Vials
  • Round bottom flasks
  • Septum covers for additions to air sensitive reactions
  • Large volume reactions
  • Nitrogen concentrators
  • Tubes


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A. Block Style
Heated Only Heated and Cooled Reflux
B. Vial or Tube Size
Select a standard vial size of 2, 4, 8, or 20ml or choose your own custom size.
C. Number of Reaction Positions
D. Single or Multiple Vial Sizes in a Single Block
E. Single or Multiple Temperature Zones
F. Anything Else?
Call to get a quote for the block you want

1-800-827-4849 


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