Test tubes

[Jacca]

Does anyone know where you can get replacement test tubes for the test kits? They really don't have to be marked for 5 mil because I use a syringe to measure my water.

 

[Brian_Nano12g]

Does anyone know where you can get replacement test tubes for the test kits? They really don't have to be marked for 5 mil because I use a syringe to measure my water.

Just search "test tubes" on Amazon.com... There's a ton of options!