KH Director Reference Solution - GHL
USD $23.19
Alkalinity reference solution for KH monitors and test kits. 1000ml
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ION Director MULTI Reference Solution - GHL
USD $32.39 -
KH Director pH-electrode - GHL
USD $92.03
Reviews
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Kh direct
Love it, had to have it. Macks calibration verification so easy. Use YouTube videos on ghl page to help with setup. Next up ion director and the controller.