C.A.P. Grow Block 4 inch
C.A.P. Grow Block 4 inch are easy to use 100 percent self-contained and made with premium expandable soilless coir based substrate enclosed in an inert fabric. This revolutionary design allows the grower to enjoy all of the benefits of a premium loose substrate without all of the hassles of preconditioning stonewool or having to handle and blend loose mix. Simply add water and allow the substrate to expand.