Hardness Yes / No
Control test for industrial and domestic water softners.
Add two tablets to a 50ml sample (not provided) of water, shake the container.
If the water turns RED the softener requires regeneration or replacement.
If the sample turns GREEN softened water is being produced.
Up to 4, 8 or 20 mg/l CaCO3
Pack consists of 100 tablets.
Sku: AS 101
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