We provide superior quality agriculture/horticulture grade sterile and disease free, clean, odorless and lightweight Perlite which is used as a component of soilless growing media where it provides aeration and optimum moisture retention for superior plant growth. The water-holding ability of Perlite also increases the nutrient holding capacity when water-soluble fertilizers are used. Ideal for hydroponic systems. Neutral pH of 6.5 to 7.5. Available in 15-50Kg bag.