The Hydro Source
THS 66 block
THS Cube's holes are the perfect size for any 1.5” starter plug or Macroplug.
Ready to use when your seedling has outgrown its starter cube, showing three leaves or showing roots reaching 1” below the cube.
Used by hydroponic & soil gardeners
Can support large plants
Conserves up to 60% water, nutrients, and time.
Eliminates algae by blocking out light from the top of your media.
Clips are included to insert your watering hose for efficient watering.