$199.95 CAD

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    The Add Back Kit (ABK) provides a simple approach to adding concentrated fertilizers or pH adjustors directly into your Under Current® system.

    The Add Back Kit utilizes a patented Mazzei injector to pull concentrates directly into the system’s solution. The Add Back Kit uses the Under Current® system’s existing water pump and flow to naturally draw nutrient into the system via venturi action. Safe and simple.


    • Easily Add Back Nutrients and pH Adjustors to Your System
    • Avoid Shocking Plants During pH and Nutrient Adjusting
    • Simple process, Just Turn a Valve to Initiate Add Back
    • Adapts to any Under Current® System
    • Can Also Be Used for Supplemental Aeration
    SKU: 210000003268