The Orku Hydroponic Coco Perlite Mix consists of a blend of 70% high-quality desiccated coconut husk (coir) and 30% perlite, making it a reliable and easy to use substrate for hydroponic systems. The RHP certification ensures that the mix of coir and perlite maintains a high level of consistency and quality, is pest and disease free, thoroughly rinsed, pH stabilised, pre-buffered with calcium, and has a very low salt index.