Mother Earth Perlite & Coarse Perlite food-&-water-storage Automatic Shut-Off – The meter

Automatic Shut-Off – The meter can be set to automatically turn off after 8 minutes or 60 minutes to conserve battery life in the event that the meter is left on

Autopilot CO2 generators provide and maintain the carbon dioxide levels needed to meet maximum growing potential

Rolls 7 3/4" to either side

Product Highlights High Pressure Sodium with adjusted blue spectrum brings you the best yields in flowering and fruiting

200K blue spectrum is perfect for young plants

Mother Earth Perlite & Coarse Perlite food-&-water-storage Automatic Shut-Off – The meterMother Earth Perlite is naturally occurring siliceous rock that expands up to 20 times its original volume when heated to 1600 F. This kilning process is very similar to popping popcorn and produces a growing media that is sterile and has a neutral pH of 7. 0. The exceptional physical properties of this perlite make it tops in the perlite world for adding porosity to soil and soilless mixes. This perlite has numerous hydroponic applications as well.