Three layer rack ships in 5 parts, assemblies quickly to hold 12 25mm (1") diameter test tubes; only $7.95, discount for quantities.
All the glass test tubes listed in the discounted bundles below are 25mm (1") diameter & will fit this test tube rack:
You can also use it customize it for use as a decal branded test tube rack for use in stores or at tradeshows.
This rack requires assembly. It consists of 3 identical layers that fit into 2 identical end pieces.
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