What test tubes do you use?

[NinnJinn]

I already know that API test kits are not the greatest in the world. Once I finally run through the two kits that I bought I will definitely be searching for a new test kit. But meanwhile these API test tubes that I have suck.....
No matter how tightly I hold the cap on to the tube, when you have to shake it to get results it leaks and sometimes even splatters everywhere.

So I'm curious what brand test tubes do you use and by chance do you have a link for them so I can purchase some?

Thank you!

 

[DLHDesign]

I got a box of replacements. When one starts leaking, I throw out the cap (and sometimes the tube) and use a new one. The newer ones seem to fit tighter and leak less.