The SPH-1 comes complete with the SPH-1 hub
an aroma and resin enricher from Emerald Harvest
The green LED indicator shows the CO2 level is below 800ppm which means the room is safe to entry
A readily available source of organic nitrogen
This float valve comes with a 1/2 in barbed fitting
PVP Industries Horticultural Vermiculite - 4cu ft Bag Commercial Water Filters The SPH-1 comes complete withPreferred for seeding, plugs, small cells and moisture retentive soil mixes. Horticultural vermiculite is permanent, clean, odorless, non toxic, sterile and pH neutral. It will not deteriorate, turn moldy or rot. Mixed with soil, peat, composted pine bark, fertilizers, pesticides and herbicides and promotes faster root growth and quick anchorage to young roots. Vermiculite granules attract and hold ammonium, potassium, calcium and magnesium needed for