Cultiwool 6" x 6" x 6" Block w/ Optidrain & Donut Ring (48 Blocks/Case)

Cultiwool 6" x 6" x 6" Block w/ Optidrain & Donut Ring (48 Blocks/Case)

SKU: CUL667
$190.00
$269.99
SALE
Available to Order
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Quick answer

Cultiwool 6" x 6" x 6" Block w/ Optidrain & Donut Ring (48 Blocks/Case) should be matched to your growing media, water source, crop stage, feeding style, and pH/EC monitoring plan.

Best fitGrowers building a nutrient program around a specific media type, water source, and crop stage.
Check before orderingConfirm the listed SKU, dimensions, and ship weight match the version you want before checkout.
Grower tipStart from the label or feed chart, measure pH and EC, and increase strength only after plants show they are handling it.

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

Description

Cultiwool 6" x 6" x 6" Blocks with Optidrain AND Donut Ring combine both premium features for the ultimate in water management.

The Donut Ring — Cultiwool's industry-first innovation — creates a water chamber around the plug hole for perfectly homogeneous nutrient distribution, while the Optidrain grooves provide efficient bottom drainage.

This block features a larger 1. 5"/1. 6" plug hole compared to the standard CUL666, designed to accept larger starter plugs or direct planting.

Ideal for demanding cultivators who want maximum control.

Weight: 24 lbs.

This Cultiwool item is listed in Growing Media under Rockwool, giving shoppers a clear fit point in the Toledo Indoor Garden catalog.

  • Both Optidrain AND Donut Ring — dual premium features
  • Larger 1.5" / 1.6" plug hole for larger starter plugs
  • Hugo-size block for large plants
  • Homogeneous water distribution eliminates dry spots
  • Efficient bottom drainage for optimal oxygen levels
  • Eliminates dripper positioning errors

Specifications

SKUCUL667
BrandCultiwool
UPC
Weight24 lbs
Dimensions14 x 10 x 7 in
Product TypeStonewool Block
Block Dimensions6" x 6" x 6" (150 x 150 x 142 mm)
Plug Hole1 hole, 1.5" / 1.6"
DrainageWidth Grooves (Optidrain)
Donut RingYes (Premium)
Blocks Per Case48
Case Weight~24 lbs
MaterialStone Wool (Rockwool)
Fiber OrientationVertical
CertificationRHP Certified
ManufacturerCultiwool (Netherlands)

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