The sera aqua test-box is a profi test set for exact determining of 9 important water values in fresh water aquarium or garden pond. All important tests are included.https://www.aquaristikshop.com/aquaristic/Sera-aqua-test-box/389001/
- Oleg A. wrote about Sera aqua-test box in 2016:
Very good tests. Handy suitcase. It would be great, if sold separately components to this kit.