- 18 x Cultiwool 8" x 8" x 8" Growing Blocks
Cultiwool 8" x 8" x 8" Growing Blocks (18 Blocks/Case)
starting from 0% interest financing from
/mo.
- 512 cubic inches of growing volume for high capacity commercial plant development
- Donut Ring water chamber provides uniform moisture distribution and precise dripper seating
- 18 blocks per case sized for large scale hydroponic systems requiring maximum root space
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are upgrading to 8-inch cubes because your harvest requires a massive root zone that 6-inch blocks cannot support.
- You are switching to Cultiwool because your previous media lacked the drainage needed to prevent root pathogens.
What We Found
- The donut ring on top makes dripper placement foolproof so you do not have to worry about water bypassing the core.
- Those bottom grooves are deep enough to keep the stonewool off the tray floor even when the drainage is running slow.
What Users Say
- Commercial growers report that switching to these cubes allowed them to extend the time between irrigation cycles.
- Users who transitioned from smaller media found that the extra volume prevented nutrient burn during peak growth.
Cultiwool 8" x 8" x 8" Growing Blocks (18 Blocks/Case)
Struggling to find a growing medium that can keep up with your largest plants? The Cultiwool 8" x 8" x 8" Growing Blocks are engineered for maximum capacity, providing the perfect foundation for commercial-scale hydroponic systems and ensuring your plants have the space they need to thrive.
These premium stonewool blocks from Cultiwool are designed for serious growers seeking superior water management and a massive growing volume. Each 8-inch cube ensures rapid, uniform water absorption, delivering consistent moisture levels essential for healthy development. The innovative Donut Ring technology creates a perfect water chamber for precise dripper placement, while the cross grooves at the bottom enhance drainage and reduce ground contact, minimizing the risk of root pathogens. For starting your plants, consider using the compatible Cultiwool 1.5" Cubes before transplanting.
Wrapped in black and white foil to prevent algae growth, these blocks maintain a clean and stable root environment. Built with high-quality European stonewool, they offer the reliable, professional-grade performance needed for any large-scale operation. While these 8-inch blocks are ideal for mature plants, the Cultiwool 6" blocks offer a great alternative for medium-sized applications.
What's Included
Features
🌱
Maximum Growing Volume
The 8" cube provides the largest available growing space, perfect for commercial-scale and high-capacity applications.
🎯
Donut Ring Technology
Industry-first water chamber ensures precise dripper placement and uniform moisture distribution throughout the block.
💧
Enhanced Drainage
Bottom grooves improve water flow and reduce ground contact, minimizing the risk of root disease from pathogens.
🛡️
Algae Prevention
Black and white foil wrapping blocks light to prevent unwanted algae growth and maintain a clean root zone.
🏆
Commercial-Grade Quality
Made from high-quality European stonewool for consistent texture and reliable performance in demanding operations.
Specifications
| Specification | Value |
|---|---|
| Material | Premium Stonewool |
| Dimensions | 8" x 8" x 8" (203mm x 203mm x 203mm) |
| Plug Hole Size | 38mm / 40mm |
| Quantity per Case | 18 Blocks |
| Special Features | Donut Ring, Drainage Grooves, Black/White Foil |
| Selling Unit | Case Only |
FAQs
What are these 8x8x8 blocks best used for?
They are ideal for large, mature plants in hydroponic systems, particularly for commercial growers who need maximum root volume and stability for high-value crops.
Do I need to prepare the Cultiwool blocks before use?
Yes, it's essential to presoak the blocks in pH-adjusted water (typically pH 5.5-6.5) until they are fully saturated before transplanting your starter plants.
What size starter cube fits in these blocks?
The blocks have a 38mm/40mm hole, making them perfectly compatible with most standard 1.5" starter cubes, including the Cultiwool 1.5" Cubes.
How does the Donut Ring technology work?
The Donut Ring is a recessed water chamber on top of the block. It ensures your dripper stake stays perfectly centered and distributes water and nutrients evenly across the top surface, preventing channeling and dry spots.
Can these blocks be used for soil gardening?
These blocks are specifically designed as a hydroponic growing medium. Their properties are optimized for soilless cultivation where you have precise control over water and nutrient delivery.
What makes Cultiwool a good choice for growers?
Cultiwool is known for its high-quality European stonewool, which provides a consistent, inert substrate with excellent water retention and aeration. This reliability is crucial for achieving predictable and healthy plant growth.
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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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