API Test Tubes are genuine replacement glass test tubes for API liquid test kits, including aquarium and pond kits and the API Master Test Kits. Pick up a single tube to replace one that’s broken, lost or stained, or add extras so you can test more parameters side by side.

Each tube has a 5 ml fill line for accurate sample measuring and comes with a snap-tight plastic cap to seal it while you shake or invert it during testing.

Key Features

• Genuine Replacement: Made for API aquarium and pond liquid test kits
• 5 ml Fill Line: Clear mark for accurate sample measuring
• Glass Construction: Clear, easy-to-read colour results
• Snap-Tight Cap: Seals securely during testing
• Sold Individually: Buy just as many as you need

How to Use

1. Rinse the test tube with clean water, then with a little aquarium or pond water.
2. Fill to the 5 ml line, or as directed by your test kit.
3. Add test solutions as directed, cap the tube and shake or invert as instructed.
4. Rinse the tube thoroughly after each test.

Please note: Glass is fragile, so handle with care. Rinse tubes thoroughly after each use and store safely out of reach of children.

Suitable For: Owners of API liquid test kits needing a spare or replacement test tube.