Aqua Master Calibration Solution pH 4.01 500ml (Case of 8)

KCI Storage Solution. Traceable to NIST standard. Close immediately after use. Store between 15-25 °C. Do not return liquid. Thoroughly rinse the electrode before and after each use. Pour some KCI storage solution into the electrode's protective cover. Place the electrode in the solution.

Sold as a case of 8 bottles.