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which is the second most abundant element in the earth’s crust (oxygen is the most prevalent)
It lightens heavy soils and holds moisture in sandy soils
The BETA-8 features a high-quality remote CO2 sensor (with 16ft cable) and built-in photocell to automatically activate your supplemental CO2 system to maintain CO2 PPM levels only during daylight hours
A must for growers using coir-based soils
KFI PRE-FILTER (various sizes) Size:1250 which is the second mostPre filters extend the life of your air filter and should be cleaned regularly.
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