We carry two different types of Hydrion test strips. One has a range of
4-9 and come in a vial of 100 test strips. These we sell mainly for use with Hydroponics.
Dip the test strip into the nutrient solution and compare the resulting color to the
included chart. The other strips are mainly intended for testing the pH of saliva. These
strips have a range of 4.5-7.5 and come in a vial of 50.
| Hydrion Test Strips 4-9 range Vial of 100 |
$3.95 |
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| Hydrion Saliva Test Strips 4.5-7.5 range Vial of 50 |
$5.95 |
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