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417-10 Total Hardness Test Kit (w/HIBS) (Eyedropper Dispenser) Includes: 143 Hardness Indicator Buffer Solution R411 Hardness Titrating Solution (1 drop = 2, 5, 10, 20, 25, 50 ppm / 25 ml) Please note that the picture(s) available are generic pictures from the manufacturer.
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🇺🇸 Ship from USA · On Agora since 2026
$34.95