AQUADUR 4 - 21, for water hardness (Tube of 5000 test strips)

$0.00

  • Model:91222
Product may vary slightly from image representation.
• Quick and easy determination of water hardness

• Gradation (Total Hardness): < 54 >72 > 126 > 252 > 378 ppm CaCO3

• Color change (Total hardness): Green to red

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