Grodan Gro-Block Improved Jumbo (6x6x4) w/Hole - Carton

Grodan Gro-Block Improved Jumbo (6x6x4) w/Hole - Carton

SKU: GRD286613
$179.99
Available to Order
Inventory may be in-store or supplier warehouse. Call 419-725-2450 to confirm availability, handling timing, or shipping.

Quick answer

Grodan Gro-Block Improved Jumbo (6x6x4) w/Hole - Carton 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 Jumbo (6x6x4) w/Hole - Carton.

JUMBO - 6IN X 6IN X 4IN - PRE-CUT HOLE - LOOSE IN CARTON - Grodan Improved Gro-Blocks utilize advanced hydrophilic technology and optimal density to improve water distribution and promote healthy root development.

Available as loose blocks or in strip format, these blocks feature a groove pattern on the bottom for compatibility with various cultivation systems, enhancing their versatility.

Each block includes a single plug hole, facilitating efficient transplanting of fully rooted Grodan A-OK or Grodan Macro plugs.

Made from stone wool derived from basalt rock, these blocks are lightweight, absorbent, and structurally sound, making them ideal for automated seeding and transplanting processes.

The unique hydrophilic fibers ensure rapid, even water distribution and offer excellent buffer and re-saturation capabilities, while the blocks' homogenous structure guarantees uniform nutrient availability, promoting consistent plant growth.

Stone wool also ensures that no water or nutrients are wasted, and that the material is free from pathogens or unwanted seeds, supporting healthy and productive plant cultivation. 0 x 6.0 x 4.0 in, shipping weight 28 lbs, material Stone Wool (Basalt Rock Fiber).

Weight: 28 lbs.

  • Genuine Grodan product
  • Brand: Grodan
  • Category: Growing Media > Rockwool Blocks
  • Listed weight: 28.00 lbs
  • Listed dimensions: 6.0 x 6.0 x 4.0 in
  • Review product photos, selected option, specifications, and label directions before ordering

Specifications

SKUGRD286613
BrandGrodan
UPC774783494010
Weight28 lbs
Dimensions16 x 12 x 12 in
Shipping Weight28 lbs
Sold AsCase Pack
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 Size6" x 6" x 4" (15 x 15 x 10 cm)
ModelGro-Block Improved Jumbo (GR22.5)
Volume (Per Block)144 cu in (1,800 mL)
Saturated Weight (Per Block)~1,800g (4.0 lbs)
Water Holding Capacity~80% at saturation
Air Content~20% at saturation
Fiber OrientationVertical (improved drainage)
Product TypeFull-Cycle Production Block
Wetting AgentAdvanced Hydrophilic (Improved)
Compatible PlugsGrodan A-OK 1.5" or Macro Plugs
Wetting MethodSubmerge 20-30 min or overhead water 6-8 passes
PackagingWith Hole — Loose in Carton

Need Help?

Call us for expert advice:

419-725-2450

Mon-Fri: 9AM-6PM | Sat: 10AM-6PM | Sun: Closed