The HTH 6-Way kit is, but it just doesn't test too high ----- only to 5ppm. Good as a starter kit, though, while you wait on the delivery of a Taylor K-2006! (We don't like the test strips, though.)
The HTH 6-Way kit is, but it just doesn't test too high ----- only to 5ppm. Good as a starter kit, though, while you wait on the delivery of a Taylor K-2006! (We don't like the test strips, though.)
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