WHY FIBRGO?  
Not at all! Fibrgro horticultural grade rock wool is made from nature's own pure basalt rock. Basalt is formed by volcanic action-a natural process that separates out impurities. Other rock wool can be manufactured from industrial by products, such as iron or copper slag, compromising consistency and purity.

Fibrgro is made in an ISO 9002 registered facility ensuring quality assurance and production control. Fibrgro is also manufactured to precision tolerances. This assures you of consistent performance from block to block, slab to slab, enabling the greatest control over quality and yield across the range and from crop to crop.

Fibrgro horticultural grade rock wool is the best substrate choice. Rock wool gives the professional grower more control over plant performance than all other growing media.

For a printable data/specification sheet, click here: specs.pdf