Aquarium Systems GH Test Kit

Aquarium Systems GH Test Kit

$24.99

Availability: 1 in stock at Online Warehouse

The general hardness (GH) indicates the quantities of magnesium and calcium salts dissolved in the water

The general hardness (GH) indicates the quantities of magnesium and calcium salts dissolved in the water.

  • For freshwater only
  • 1 drop = 1°GH
  • Changes the colour from purple to blue
  • 2 x 10 ml to test 480°GH