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Vapor Pressure @25°C 1x10^-7 torr
High output lamps have an extremely high lumen per watt rating
Efficacy 2
Stir thoroughly until fully dissolved
and improved moisture retention while remaining pH neutral
Mother Earth Perlite #4 Terp Derp Vapor Pressure @25°C 1x10^-7 torrMother Earth Perlite #4 measures 1 inch, and is the largest perlite on the market. 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
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