| Brand | Unbranded |
|---|---|
| Type | pH Meter |
| Country/Region of Manufacture | China |
Check the listing for details. 15 Pack pH Buffer Powder Calibration Solution 4.01 6.86 9.18 for Meter Tester C. Condition: New. Listed at 9.99 USD. 5 × pH 4.01 Buffer Powder (Potassium Hydrogen Phthalate). Accurate, convenient, and travel-ready! Perfect for swimming pools, aquariums, hydroponics, spas, and laboratory use. 5 × pH 6.86 Buffer Powder (Mixed Phosphate).
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