Find the lowest price for:       All ProductsTest Kits     4.8 (3)   Add a review Aquarium Pharmaceuticals Carbonate Hardness Test Kit   Aquarium Pharmaceuticals Test Kits KH/Carbonate Test Kit by Aquarium Pharmaceuticals API. Tests aquarium water for carbonate hardness KH or calcium. Each test kit includes reagents, glass test tube with cap,... Have a question? Ask the Experts! Compare Prices Product Spec Member Reviews Recommend to Friends Edit the spec Category Aquarium Pharmaceuticals Something wrong in this page? Let us know! Related products: More Aquarium Pharmaceuticals Test Kits Other Test Kits internal use: spec399