260 mV Kit - Comes with Quinhydrone powder and 2 oz. bottle of PH4 solution NOTE: This item is ordered fresh from the factory to prevent it from going bad on the shelf.
The Walchem 191058-20 is a repair part kit designed for the Chemical Metering Pump. ORP Add-On: The kit includes an ORP (Oxidation-Reduction Potential) add-on component, enhancing the functionality...