GH MaxiGro 16 lb grodan-gro-wool-absorbent-granulate Filter size is 20 in

Filter size is 20 in x 16 in x 2 in

Features heavy-duty solenoid valve

Supply Voltage: 115 V - 1 Phase - 60 Hz

The sensor comes factory calibrated for precise CO2 readings and utilizes low voltage technology to avoid radio frequency interference (RFI) from electronic ballasts

With a heavy feed up-front and sustained nutrition throughout

GH MaxiGro 16 lb grodan-gro-wool-absorbent-granulate Filter size is 20 inMaxiGro and MaxiBloom are extremely potent, stand alone, water soluble, dry concentrate nutrients. Complete in primary, secondary and micronutrients, pH buffered MaxiGro and MaxiBloom will provide superior results when used with a wide variety of crops in both hydroponic and soil based environments. MaxiGro encourages growth of seedlings, cuttings and stimulates rapid growth through the vegetative growth stage.