- 64x Cultiwool 6" x 6" x 4" Growing Blocks with Optidrain Technology
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Cultiwool 6" x 6" x 4" Growing Blocks w/ Optidrain (64 Blocks/Case)
starting from 0% interest financing from
/mo.
- 64 blocks per case
- 6" x 6" x 4" dimensions with 38mm / 40mm plug hole
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are scaling up your production capacity because your current smaller blocks limit root development for larger plants
- You are upgrading your hydroponic setup because inconsistent water distribution keeps causing dry spots and waterlogging
- The donut ring water chamber design ensures perfect dripper placement and homogeneous water distribution.
- The advanced drainage technology provides optimal root zone conditions and prevents dangerous waterlogging.
- The integrated bottom grooves improve water flow and reduce ground contact to minimize pathogen risks.
- Growers who replaced loose media with these blocks say they finally eliminated dry spots across their entire tables
- Users managing commercial setups report that the drainage grooves successfully kept their root zones clear of standing water
Cultiwool 6" x 6" x 4" Growing Blocks w/ Optidrain (64 Blocks/Case)
Struggling with inconsistent water distribution and poor drainage in your hydroponic setup? The Cultiwool 6" x 6" x 4" Growing Blocks w/ Optidrain are engineered to solve these challenges, providing a professional-grade substrate that ensures every plant receives the exact hydration it needs for explosive growth.
These premium stonewool blocks are designed for growers who demand reliability. By utilizing advanced homogeneous distribution technology, Cultiwool eliminates dry spots and waterlogging, creating a stable root zone environment. Whether you are scaling up from Cultiwool 4" x 4" x 4" Growing Blocks or looking for a high-performance alternative to loose media, these blocks deliver the consistency required for commercial success. For even larger plant systems, you might also consider the Cultiwool 6" x 6" x 6" Growing Blocks w/ Optidrain.
What's Included
Features
🍩
Donut Ring Tech
Industry-first water chamber design ensures perfect dripper placement and homogeneous water distribution.
💧
Optidrain System
Advanced drainage technology provides optimal root zone conditions and prevents dangerous waterlogging.
🌊
Drainage Grooves
Integrated bottom grooves improve water flow and reduce ground contact to minimize pathogen risks.
🛡️
Algae Prevention
Black and white foil wrapping blocks light to prevent algae growth while optimizing light reflection.
📏
Large Format
Generous 6" x 6" x 4" dimensions provide ample space for robust root development in larger plants.
Specifications
| Specification | Value |
|---|---|
| Material | Premium European Stonewool |
| Dimensions | 6" x 6" x 4" (150mm x 150mm x 98mm) |
| Plug Hole Size | 38mm / 40mm |
| Quantity per Case | 64 Blocks |
| Special Features | Optidrain, Donut Ring, Drainage Grooves, Black/White Foil |
| Selling Unit | Case Only |
FAQs
What is Optidrain technology?
Optidrain is Cultiwool's proprietary drainage system designed to ensure that excess water leaves the block efficiently, maintaining the perfect air-to-water ratio for healthy root development.
How does the Donut Ring help with irrigation?
The Donut Ring acts as a water chamber that guides your dripper placement and ensures water is distributed homogeneously throughout the entire block rather than channeling down one side.
Do these blocks prevent algae?
Yes, the blocks come wrapped in a high-quality black/white foil. The black interior blocks light to prevent algae growth on the substrate surface, while the white exterior reflects light back to your plants.
What size rooting plugs fit into these blocks?
These blocks feature a standard hole that accommodates 38mm to 40mm rooting plugs, making them compatible with most propagation starters.
Why are there grooves on the bottom of the block?
The cross grooves improve airflow and drainage between the block and the surface it sits on, reducing the risk of root pathogens and improving overall plant hygiene.
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Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
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