PURE SUBSTRATES 4" Starter Block w/removable bottom (case of 192) Seed Starting it precisely monitors volumetric water

it precisely monitors volumetric water content

lower root zone temperatures in hot weather

Suction & return hose length: 6 ft

Set it and forget it: Once installed

PURE SUBSTRATES 4" Starter Block w/removable bottom (case of 192) Seed Starting it precisely monitors volumetric waterPURE SUBSTRATES STARTER BLOCK WITH 40MM HOLE 10X10X7CM COMMERCIAL GRADE GROW BLOCKS MANUFACTURED FROM HIGH GRADE COCO RAW MATERIAL. PURE SUBSTRATES starter blocks are made especially for cannabis Organic product Produced in ISO 9001: 2015 factory consistent quality assured. Wetting agent ensures nutrients are immediately plant available pH buffered using our patented, sustainable and totally organic process. Less toxic for the environment and