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ETL certification meets all requirements of the National Electrical Code (NEC) and the Canadian Electrical Code (CEC)
In turn they draw up too many nutrients and burn the leaves
Manufactured in Germany
the performance will drop off over time
Flat stone disc sits perfectly on the bottom of your aquarium
Ona Odour Control Ducts 4" 100mm ETL certification meets all requirementsBrand New Ona Odour Control Ducts gives the ultimate in growers peace of mind. Used in conjunction with Ona blocks for the neutralisation of unwanted odours in your ducting. Instructions for Use: Open catches on ducting lid, open lid, insert desired quantity of Ona blocks and reseal to neutralise odours in your ducting. Once the Ona blocks are exhausted simply re open discard and replace.
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