Awesome Aquarium Test Tube Holder Rack For API Freshwater Master Test Kit 4 Slot Tube Rack White Dual Function Drying Rack And Secure Test Tube Holder For Quick Water Parameter Checks

Durable 4-slot rack for API freshwater test kit, 1 pc pack
✔️ 4-slot rack fits API kit, dries fast, color chart holder

This compact, 4-slot test tube holder rack securely holds test tubes during water parameter testing and doubles as a drying rack. It snaps onto the API freshwater master test kit box or any flat surface for quick setup in tanks, classrooms, or hobby stations.

✅ Material: aquarium-safe PETG
✅ Slot count: 4 test tubes
✅ Dimensions: 131mm x 50mm x 51mm
✅ Compatibility: API Freshwater Master Test Kit box
✅ Drying features: ventilation channels and front cap slots

💡 What is a test tube rack used for in aquarium testing? A handy tool to organize and dry tubes during water checks.

- Keeps tubes upright during sampling and testing for accurate readings - Ventilation channels speed drying after tests, reducing wait time - Fits API Freshwater Master Test Kit box for neat, compact bench setup