Reddit reviews Karter Scientific 208V2 Plastic Test Tube Rack for 12/13mm Tubes, Holds 50, Detachable (Single)
We found 3 Reddit comments about Karter Scientific 208V2 Plastic Test Tube Rack for 12/13mm Tubes, Holds 50, Detachable (Single). Here are the top ones, ranked by their Reddit score.
For tubes with an OD ranging from 12mm to 13mmHole Diameter: 14mmColor: Clear
I bought this one for my API test kit and its the best purchase ive ever made on amazon. Is on Prime as well for $6.09.
See if you can find something like these and this. The test tube rack fits on my scale just fine. I use the 8 ml tubes but they go much higher. Be sure to match up the diameter of the rack holes and tubes. Inexpensive, reusable , quick and efficient.
I use this but it's unavailable.
This would work.