Grodan- MM Block Options:MM 40/40 6/15 Blk 1.5"x1.5"x1.5",150 strips of 15 Extends lamp and ballast life

Extends lamp and ballast life by reducing heat

SUNMASTER 600W COOL

unlike other hazardous pH lowering agents

Please Note a Lead Time of 4 to 6 weeks

Grodan- MM Block Options:MM 40/40 6/15 Blk 1.5"x1.5"x1.5",150 strips of 15 Extends lamp and ballast lifeGrodan 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 one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen