Pargro Slab 9.5" x 8" x 4", Case of 16

The Pargro 9.5" x 8" x 4" Slab is a lightweight stone wool made from basalt rock. It’s a highly uniform substrate that’s pathogen, disease, and seed-free, offering consistent plant growth. Stone wool is inert, so it will not add or hold back any nutrients, giving you complete control over your plants. Pargro media has rapid water distribution and excellent re-saturation capabilities, making it easy to use.The Pargro family of products are made in the most popular sizes that offer value to many growing situations, such as boutique or craft growers, growers transitioning from coco or soil, and small-scale enthusiasts. Features Vertical fiber orientation; inert hydrophilic fiber technology Uniform slabs ensure plants will have uniform crop development through to harvest Easy irrigation and good EC refreshment thanks to the fiber structure as well as the loose wrap Pargro Blocks are the foundation for uniform propagation and flowering of plants, easy to use and high quality. The leader among affordable horticultural rockwool made right in the Grodan factory so you can be assured of a high-quality product.  In black/white foil technology, Pargro gives growers the best of both water worlds; quick. balanced drain with moderate water holding capacity.