Hanna pH 4.01 Calibration Solution, 16 oz bloom • 24V power supply

• 24V power supply

An exceptional

If the area where the Diatomaceous Earth is applied becomes wet

• 120V/15A input with resettable breaker

Hanna pH 4.01 Calibration Solution, 16 oz bloom • 24V power supplyHanna's buffer solutions are made from established formulas and are standardized with a pH meter calibrated to NBS NIST primary standard buffer solutions. The 20 ml sachets are ideal for infrequent calibrations while for heavy duty applications, you can choose from the popular 230 ml, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot # and expiry date as well as pH C chart on every bottle. HI 7004L C and HI 8004L C are also supplied with