API REPLACEMENT TEST TUBES WITH CAPS For Any Aquarium Test Kit Including API Freshwater Master Test Kit 24-Count Box

I dropped all of my test tubes and they shattered, I bought this as a replacement, they are the EXACT same tubes (with 5 mL mark) that come with all API test kits, caps included

Good value for the price. I just wish the caps were tighter. If I shake too hard liquid leaks from the caps.

Exactly as expected. Can be the only one that is constantly breaking them, if they sell a box like this.

I use the api master test kit often and the tubes and lids that come with the kit work perfectly. For some reason with the replacements the lids don’t seal properly and when you shake them to perform your test the liquid comes sloshing out. At least two of the test solutions can cause corrosion to metals and can cause both skin and eye damage. I don’t really see how these are safe to use. I also can not see how the test can be accurate as you are losing both tank water and test solution with every shake.

These are great! Im glad I ordered them.

Two original tubes were broken during the tests. I hope these last much longer. Good price.

Great product. Arived on time and with no damage. All the tubes arived not broken. Highly recommend.

I got exactly what I ordered}. The product description maches with what i received

If you use the API test kits then you may want to get these to go along with it. These are simply replacement tubes for the API kit so they are the exact same as what comes in the kit (clear tube with a 5 ml mark and a cap). And since they are somewhat fragile you will eventually need some replacements. Also helps out to have multiple test tubes if you are testing multiple tanks at once, in my case, 6. Its a lot easier filling a bunch of tubes at once for testing than using, rinsing and reusing the same few tubes over and over for one batch of tests.

I am glad that I ordered these. I have the API mater test kit for Fresh Water and I dislike running out of test tubes. This solves that problem. Now I can wash them all at once and be ready to go. The lids are nice and tight on the tube so that I dont spill while shaking the solutions. They are durable and I can tell that they will last a really long time.