Free
This is a test tube holder and drying rack for the 4 tubes that come with the API Master Test Kit. After testing the water and rinsing them out, let them dry on here for a few hours before putting them back with the kit.
It is a tight fit sliding the sticks into the base. Lightly sanding the flat face on the end may be required.
***UPDATE, 5/29/26
The sticks were scaled down to 94% in the print profile to allow for an easier fit
0.2mm layer, 2 walls, 15% infill sticks scaled to 94%, brims on each end
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