Hydrofarm Grow!T GMPER100L Super Coarse Perlite Sterile Soil Aerat...

Hydrofarm Grow!T GMPER100L Super Coarse Perlite Sterile Soil Aeration Volcanic Rock Bags, 100 Liters/3.53 Cubic Feet, 22 Pounds, 2 Pack

• EXPANDS: Perlite is a unique volcanic mineral which expands from four to twenty times its original volume; Package weighs 22.4 lbs. (2 Pack)
• PH NEUTRAL: When expanded, each granular, snow-white particle of perlite is sterile with a neutral ph and contains many tiny, closed cells or bubbles
• SURFACE AREA: The surface of each particle is covered with tiny cavities which provide an extremely large surface area
• PLANT ROOTS: These surfaces hold moisture and nutrients and make them available to plant roots
• STERILE: Perlite is sterile, meaning it's is free of disease, seeds, and insects