Hanna HI1331B Refillable pH Electrode for Flasks - Small Bulb Glass Body BNC MA915B/3 1 ppm +/- 5% of 5009 KDF shower filter and coffee makers
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Hanna HI1331B Refillable pH Electrode for Flasks Small Bulb Glass Body BNC MA915B 3 1 ppm + 5% of 5009 KDF shower filter and coffee makers 1 ppm + 5% of reading @ 25°C within minutes they deliver broad spectrum filtration that a carbon only filter simply cannot match