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The ONA block is a small quiet workhorse when it comes to odour control
Housed in durable steel casing with a galvanised back panel ready to hang either inside or outside of the grow room
in the correct manner
micronutrients
chlorophyll taste you often get from hydroponics
Lighting Controller for Ballasts Gavita Master Controller (EL1) The ONA block is aGavita Master Controller EL1 Lighting control at your fingertipsUsing a Gavita Master controller to control your e series fixtures offers you maximum control, ease of use, plug and play installation and safety. Just connect the controller cables to the fixtures with the included T splitter (see diagram), set the dials on the fixtures to EXT (External control), plug the controller and the fixtures directly into mains and you are set to go. The
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