Swiss Labs 7-1 Aquarium Test Kit (150 Strips) for Fresh and Saltwater Tanks, Easy to Use Single Dip Test
- Will safely hold 6 test tubes - no more trying to use generic racks with holes too large!.
- Compatible with both API and Tililly Concepts 5 ml aquarium test tubes (13mm diameter).
- rinse and dry your test tubes on the drying poles.
- Complements all API freshwater and saltwater tests.
- Please note, test tubes are not included in this offer.
- If this version does not meet your needs please consider our 8 hole version.