ORP buffer solution and electrode test kit. The kit comes with all you need to calibrate and test the quality of the electrode of your ORP-200 meter. For best results, test your ORP meter from time-to-time.
• 10 Powder Pillows*
• 3 x 100 mL bottles
Part #: ORP-BUF.
* 1 liter total quantity (each powder pillow makes 100 mL of solution)
** Parts ordered may look slightly different than the picture displayed, but the fit and function will be the same.