Brand Unbranded
Type pH Meter

Check the listing for details. 15 PCS PH BUFFER SOLUTION POWDER PRECISE CALIBRATION - pH 4.01 / 6.86 / 9.18 New. Condition: New. Listed at 9.32 USD. 5 4.01 solution (potassium hydrogen phthalate). -5 6.86 solution (mixed phosphate). -5 9.18 solution (Borax).

$7.46
$9.32