PVP Industries Horticultural Vermiculite - 4cu ft Bag Type:Course Reverse Osmosis System optimized for

Reverse Osmosis System optimized for use in hydroponics and gardening

Solves the problem of not being able to use "Brand S" ballasts and Hydrofarm reflectors in combination due to incompatible plugs

Fish Bone Meal Flour is an excellent source of Phosphorous

Made with black galvanized steel

Excellent for nutrient testing

PVP Industries Horticultural Vermiculite - 4cu ft Bag Type:Course Reverse Osmosis System optimized forPreferred 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