Test-Kit

Nutrafin Kh Reagent Refill Is For Use With Nutrafin Carbonate And General Hardness Test. Carbonate Hardness (kh) Levels Need To Be Tested On A Regular Basis Because They Fluctuate Over Time And Can Negatively Impact The Ph Balance Of The Aquarium Water.

These Are Genuine Nutrafin Replacement Test Tubes With Caps For Use With All Nutrafin Aquarium Tests.