VidaWool Rockwool Block with Hole, 4 Inch x 4 Inch x 4 Inch Nutrient Injection PURE SUBSTRATES® starter blocks were

PURE SUBSTRATES® starter blocks were designed and tested stringently in Holland

and geek out to your heart’s content

Double junction probe

We know storage space is limited

2-metre cable for measuring in hard-to-reach locations

VidaWool Rockwool Block with Hole, 4 Inch x 4 Inch x 4 Inch Nutrient Injection PURE SUBSTRATES® starter blocks wereVidaWool Product Documents VidaWool Rockwool Block Data Sheet VidaWool. Cultivate With Confidence VidaWool blocks provide the space and uniform water and nutrient distribution they need to continue thriving in their second stage of life. Equipped with a UV protection liner and Hydro Xtend water dispersion technology, VidaWool blocks are intelligently designed to deliver healthy, even root zones and consistent crop performance. Mineral wool growing