HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Features High purity with over 99.9% H3BO3 content Fully soluble for hydroponics and fertigation Effective as an insecticide for pest control Improves plant growth in alkaline and boron deficient soils Non-toxic to mammals when used properly Specifications Weight: 2Kg Particle Size Distribution: Retained on 1.000mm (18 Mesh) sieve – Max 4% Passing on 0.063mm (230 Mesh) sieve – Max 4% You Will Receive 2Kg Boric Acid Powder in a resealable bag.