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Free shipping on HK orders over $2000
Welcome!
AQUADUR test strips are for the quick and easy determination of water hardness. The convenient Dip & Read procedure and the clear color changes from green to red ensure reliable results within seconds.
Models:
91312 , 91319 ,
91321 , 90714 , Others
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| Model | Measurement Range | Gradient |
| 91239 | Total hardness | <54, >72, >151.2, >252 ppm CaCO3 |
| 91220 | Total hardness | <54, >72, >126, >252, >378 ppm CaCO3 |
| 91201 | Total hardness | <54, >90, >180, >270, >360, >450 ppm CaCO3 |