Water Hardness 0-500ppm
£5.42 £6.50Total hardness test strips for water quality are the ideal solution...
YES/NO Hardness Liquid
£9.00 £10.80These hardness tablets are a fast and effective method of determining water hardness....
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Hardness test strips are useful for determining the likelihood of scaling caused from the water supply.
Total hardness test strips for water quality are the ideal solution...
These hardness tablets are a fast and effective method of determining water hardness....