US$ 1535.60
It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes
–No replacement parts
meaning a customized ramp-up / ramp-down can be used to closely simulate natural outdoor conditions
The ROI-E420 isn't just an LED with an on and off switch
LOW POWER USAGE
Mother Earth Coco (1.8 cu. ft.) Happy Frog It is designed to increaseMother Earth Coco Mother Earth Coco substrate contains the highest quality mix of coco pith and coco fiber. Mother Earth Coco is pre buffered and pH adjusted to neutral at 6. 36. 8. For an optimal hydroponic media, combine Mother Earth Coco with Mother Earth Hydroton or Perlite for increased production. This is uncharged inert media.
US$ 1535.60
US$ 510.40
US$ 409.20
US$ 1151.70
US$ 985.60
US$ 783.20