The EazyPod/Nexus Automatic Auxiliary Relay is suitable for the following Evolution Aqua models: Evolution Aqua Eazypod Automatic Evolution Aqua Eazypod UV Automatic Evolution Aqua Nexus Automatic System - Pump Fed Evolution Aqua Nexus Automatic System - 220 Gravity Fed Evolution Aqua Nexus Automatic System - 320 Gravity Fed.
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