Mother Earth Perlite #4, 4 Cubic Feet. Pallet of 30 Bags

The exceptional physical properties of this perlite make it top in the perlite world for adding porosity to soil and soilless mixes. Mother Earth Perlite is 100% naturally occurring siliceous rock that when heated to 1600° F expands up to 20 times its original volume. 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. This perlite has numerous hydroponic applications as well. The #4 is the largest perlite on the market and averages a whopping size of around 1 inch. The #3 measures around 1/2 inch. Coarse is about 1/8 to 1/4 inch.