API® GH & KH Test Kit - General and Carbonate Hardness Test Kit Flow Rate at 6 Feet of Head_2400 GPH When exposed to elevated temperatures

When exposed to elevated temperatures

thread sealant and fittings

water features

helping to further increase the pond’s oxygen levels and remove possibly harmful gases from the water

Four kits available:

API® GH & KH Test Kit - General and Carbonate Hardness Test Kit Flow Rate at 6 Feet of Head_2400 GPH When exposed to elevated temperaturesKeep your fish healthy and thriving by testing your aquarium water's GH levels regularly with this easy to use API GH & KH TEST KIT for freshwater aquariums. Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Water hardness is a measure of the dissolved mineral content of water. Contains one (1) API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, including 2 bottles of testing solution and 2 test