Current Culture H20 Under Current Add Back Kit

Sale price$129.95


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 nutrients 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

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