First of all the Revain hoses were sent without seals so 2 out of 6 were broken and the 3rd snapped. I really needed more water test tubes so I kept the remaining 3. The glass appears to be thinner than the tubes that came with the Master Test Kit, so I'm not sure if these are real Api tubes. And I just tested my aquarium. Water, I was about to remove the cap from one of the tubes to add a second nitrate test solution and the tube broke in my hand. It spilled broken glass all over my kitchen and the test solution left a large yellow stain on the kitchen counter. Luckily I only had a shard of glass in my hand, which I was able to pull out without much effort.
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