Carbon Wool Pad  145 X 35 X 5cm Mountain Tree Carbon Wool Pad is specifically designed to aid the cleaning of the water, remove particles and get your pond water crystal clear. The wool effectively polishes the water, quickly removing the particles which create the cloudiness, and the carbon impregnated foam removes chemical...

Reagents for HI 775 and HI833xx - 25 tests

Magnesium Hardness Checker HC The hardness or hydrometric titer (TH) of water essentially corresponds to the presence of calcium and magnesium salts. It is directly linked to the geological nature of the terrain crossed. A calcareous soil will give hard water while a granite soil will produce rather soft water. The total hardness represents the sum of the calcium and...

pH 4 calibration solution 1 bag

pH 7 calibration solution