Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 plant-support • Wild Boar

• Wild Boar

Weight: 90

• No salt buildup

The iPonic 614 and 624 Commercial is designed for your convenience – pre-mounted

000 hour life to L70

Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 plant-support • Wild BoarHanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is 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 #, expiry date as well as pH C chart on every bottle. HI 7004L C and HI 8004L C are also supplied