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Total Hardness Test Strips (50 strips)

Total Hardness Test Strips (50 strips)

Freeflush

£19

Price read from Freeflush on 2026-10-15. Check before buying.

Total Hardness test strips are perfect to test the hardness of your water, to check the performance of your water softener, for service work, classroom demonstrations, or to give to customers instead of an expensive service call. This full range test kit lets you measure hardness on a very wide range of 0ppm to 1000ppm (mg/l). (ppm = parts per million) The definition of water hardness is based on the amount of calcium it contains per litre: Soft water contains less than 30mg of calcium per litre (less than 30ppm) Moderately hard water contains between 30 and 60mg (30 to 60ppm) Hard water betwe

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.