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kH Test Kit by Sera makes it easy to monitor the carbonate hardness in fresh and salt water. |
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| 1 Customer Review |
| 5 Star: |
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Average Customer Rating
 4.0
out of 5 100% recommend it to
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Efficient
by
JoeP32582
from
Phoenix, AZ
on
2/20/2009
Recommends it to Friends:
Yes
Nice and easy. One drop equals one degree of kH. The color changes abruptly so there's no guessing involved.
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