Grodan Gro-Block Improved GR7.5 - Medium 4" (4" x 4" x 3") w/Hole, Strip

Grodan Gro-Block Improved GR7.5 - Medium 4" (4" x 4" x 3") w/Hole, Strip

SKU: RW344381
$264.99
Out of Stock

Quick answer

Grodan Gro-Block Improved GR7.5 - Medium 4" (4" x 4" x 3") w/Hole, Strip should be chosen by water retention, drainage, container size, crop stage, and how often you want to irrigate.

Best fitGrowers choosing media or amendments around watering frequency, root oxygen, container size, and nutrient style.
Check before orderingLarge bags, compressed bales, and pallet quantities can change shipping method. Confirm size, weight, and quantity before checkout.
Grower tipDo not mix media blindly. Air space, pH behavior, and nutrient charge affect how often you water and feed.

Shopping guidance from Toledo Indoor Garden. Prices, availability, shipping rates, weights, and dimensions are verified during checkout.

Description

Sold individually.

This listing is for one Grodan Gro-Block Improved GR7.5 - Medium 4" (4" x 4" x 3") w/Hole, Strip.

Excellent control The initial saturation and water distribution throughout the height of the blocks results in improved root growth, enhanced water holding capabilities and more stable EC behavior in the root zone.

This makes it is easier than ever before to control your crop, with even less inputs, from propagation through to harvest.

Greater steering possibilities The advanced technology used in Grodan Gro-Blocks Improved combined with the uniformity of WC and EC throughout the entire block provide better vegetative and generative steering.

WC and EC can be adjusted more rapidly and efficiently.

Roots making better use of entire substrate volume Both the rooting-in and rooting-through plant processes in Grodan Improved occurs several days faster, speeding up the vegetative phase and time to harvest.

The more effective rooting-through of the entire substrate volume leads to a visible increase of roots and thus, better water and nutrient uptake.

Weight: 19.33 lbs.

  • Genuine Grodan product
  • Brand: Grodan
  • Category: Growing Media > Rockwool Blocks
  • Listed weight: 19.33 lbs
  • Listed dimensions: 20 x 14 x 10 in
  • Review product photos, selected option, specifications, and label directions before ordering

Specifications

SKURW344381
BrandGrodan
UPC774783506614
Weight19.33 lbs
Dimensions20 x 14 x 10 in
Sold Aseach
MaterialStone Wool (Basalt Rock Fiber)
ManufacturerGrodan (ROCKWOOL Group)
PH~6.0 (neutral / inert)
ECInert — does not contribute EC
Pathogen-FreeYes — sterile manufacturing process
ReusableSingle-use recommended
Block Size4" x 4" x 3" (10 x 10 x 7.5 cm)
ModelGro-Block Improved GR7.5 (Medium 4")
Volume (Per Block)48 cu in (600 mL)
Saturated Weight (Per Block)~600g (21.2 oz)
Water Holding Capacity~80% at saturation
Air Content~20% at saturation
Fiber OrientationVertical (improved drainage)
Product TypeVegetative/Production Block
Wetting AgentAdvanced Hydrophilic (Improved)
Compatible PlugsGrodan A-OK 1.5" or Macro Plugs
Wetting MethodSubmerge 15-20 min or overhead water 6-8 passes
PackagingWith Hole — Strips

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