| EAN | 9421024923044 |
|---|---|
| MPN | BL-COMBO-1 |
| Brand | Bluelab |
Check the listing for details. Bluelab pH 4.0 & 7.0 Calibration Solution Kit - pH Meter & pH Pen Calibration.... Condition: New. Listed at 68.92 USD. Turn it on. Rinse the pen or probe tip in clean tap water and shake off the excess. Useful for providing accurate pH in hydroponics, aquariums, swimming pools, or gardens.
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