Can Filter Carbon Filter CAN 33 200CFM Plant Nutrients & Supplements refillable steel(or aluminum) cylinder designed Size:355 ml refillable steel(or aluminum) cylinder designed to hold 20 pounds of liquid CO2 under high pressure when strong structure and healthy canopy development are the priority Pressure drop at max CFM: 180pa 5 inch thick bed of granulated activated carbon made to last 18–24 months while effectively removing VOCs and odours
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