$11.18
API General & Carbonate Hardness Test Kit
API
Tests tap water & freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps prevent fish stress caused by rapid pH shif...
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$28.16
API Glass Test Tubes with Caps
API
Replacement box of 24 test tubes and caps. For use in all Aquarium Pharmaceuticals water testing kits where the original tube has been lost or dama...
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