The Dutchpro Hydro/Coco RO/SO Starter Pack contains the essential nutrient products for a 4 square foot grow. The Starter Kit contains: 1) A B Hydro/Coco Grow RO/SO 2) A B Hydro/Coco Bloom RO/SO 3) Take Root 4) Explode 5) Multi Total. The starter kit will enhance plant growth, protein production, flower forming, increased root growth and optimization of nutrient uptake. The starter kit is suited for hydroponics and coco substrates. The starter kit is optimized for growers using reversed osmosis or soft water. Are you looking to start your grow? The Dutchpro Hydro/Coco RO/SO Starter Kit is your product. Make Growing Simple Again.