Grodan

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from...

 Grodan's A-OK Starter Plugs™ for starting seeds and rooting of cuttings. Shrink Wrapped strip that fits a 10in x 20in tray. 

Used by the pros to take water samples deep inside a Grodan stonewool block or slab for better pH and EC analysis. Fits any standard Luer-Lock plastic syringe.

Pargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, so you can be assured of a high quality product at a great price. Drainage Driest value-priced...