Description

•Switch between three unique sample ratios during external referencing experiments.

•Ideal for variable temperature experiments as materials is the same between the tubes and spacer.

•In the complete set the insert and outer tube are fused together at the bottom. It is recommended for high field experiments under 600 MHz.

•For ultra high field experiments over 600 MHz; order an inner tube, two spacers and a Precision Thin Walled tube rated for over 600 separately.

<skudescription>   Complete sets come with inner and outer tubes, spacer and cap w/hole.  
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