Nynelly 15 Pack pH Meter Buffer Solution Powder pH 6.86, 4.01, 9.18 for Precise Calibrate pH Meter, pH Calibration Powder Solution, pH Tester Calibration Powder Packets 15pcs June_2023_update 67A Max Charging Current: 18W translate B09LM9WNNP Color:Yellow (Freeze Upon Arrival) Specifications Main material polyester
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Ships within 48 hours · Estimated delivery Oct 10 - Oct 15