Mother Earth Perlite #3 Size:4 Cubic Feet a reliable safety system that

a reliable safety system that alerts growers to elevated CO2 levels using both audible and visual alarms

ensuring adequate clearance for airflow intake and exhaust

Take on Tough Outdoor Jobs with Power & Precision

the actual ratio might be lower than the labeled

It also includes a 4°F buffer to prevent the fans from being turned on and off too rapidly due to minor temperature fluctuations

Mother Earth Perlite #3 Size:4 Cubic Feet a reliable safety system thatMother Earth Perlite #3 measures 1 2 inch. Mother 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