Tetra Test Kit NO2, to Measure the Nitrite Value Reliably and Precisely, 2 x 10 ml

Description

Simple to use kit for determining nitrite levels.
The tetratest nitrite kit is a liquid kit, which works by changing the colour of a water sample in relation to the nitrite concentration.
You simply need to compare the colour of the sample to the easy-to-read colour chart in order to determine the nitrite level.
If nitrite levels are high then you should seek advice as to the underlying cause.