




JBL Permanent Test CO2 plus pH:
Indicates CO2 content and pH level - Includes CH level - Exact reading ensured by white background in test holder.
The JBL Permanent Test CO2 plus pH is a beautifully designed unit for attaching inside the aquarium which permanently displays the pH value or the CO2 content of the aquarium water. Two separate colour scales, one for pH and the other for CO2, are included with the unit to be attached to the pane of the aquarium, as required.
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