kusuri nitrite test kit

As with ammonia nitrite can kill our koi so weekly checks are advised 

 Readable range 0 to 4.0 mg/L.

This test kit comprises of 50 foil sealed tablets, crusher rod, square test tube with cap, plastic acetate colour match chart with colour breaks at 0/0.1/0.25/0.5/1.0/2.0 and 4mg/L.

Full instructions are included, along with water quality guidelines.

The foil-wrapped test tablets refills are also available separately