Tetra Test 6 in 1 checks the 6 most important water equivalents in only one step: total and carbon hardness (GH & KH), nitrite (NO2), nitrate (NO3), Chloride (CL2) and the pH value in the fresh water. Packing contains 25 test stripes for 25 tests.
Application Tetra Test 6 in 1 Test stripes:
Move test stripes a few times in water, shake of excess liquid from the strip, after a while the measurings can be read.