Cultiwool Rockwool Grow Blocks – 150 mm Donut Ring
Shop Cultiwool 150 mm rockwool grow blocks with a donut ring. Browse available case and pallet options for commercial hydroponic cultivation.
$3.17 / unit · 48 cubes in this pack
Specs that do the talking.
- Product dimensions
- 15 × 15 × 15 cm
- Total units in pack
- 48 cubes
- Material
- Stone wool (rockwool) with donut-ring planting hole and bottom drain grooves
- Supply format
- Case or pallet
- Compatible systems
- Drip irrigation, Ebb and flow irrigation, Run-to-waste irrigation
Product details
Pallet shipping: Pallet orders require a freight quote and cannot be completed through standard online checkout. Contact 454 Bags before ordering a pallet so we can confirm delivery details and the total shipping cost. Case and single-roll options, where offered, remain available through standard checkout.
Commercial-grade 150mm rockwool cubes engineered for uniform irrigation, controlled dry-back, and scalable hydroponic production.
Professional Rockwool Cubes for Controlled Environments
Cultiwool 150mm Rockwool Cubes with Donut Ring are built for commercial cultivation where irrigation precision and crop consistency matter. Designed for large-scale hydroponic systems, these cubes eliminate uneven hydration, prevent dry cores, and provide a stable root zone across every block in your facility.
The integrated donut-ring planting chamber distributes water evenly from the drip point outward, improving saturation uniformity and reducing channeling. Bottom drain grooves promote runoff control and keep production areas cleaner during heavy irrigation cycles.
Why Commercial Growers Choose Donut Ring Cubes
- Even water distribution: Circular planting cavity improves hydration balance and reduces dry pockets.
- Improved runoff control: Bottom grooves move excess solution away from the root zone.
- Consistent fiber density: Uniform porosity supports predictable oxygen and moisture balance.
- Stable, inert media: Allows precise EC and pH steering in controlled irrigation programs.
- Designed for scale: Case and pallet quantities support continuous commercial cycles.
Available Cube Sizes (Metric)
- 150 × 150 × 150 mm – Extended root zone for longer vegetative cycles.
- 150 × 150 × 100 mm – Reduced height for tighter canopy management and faster dry-back.
Operational Benefits at Scale
Rockwool remains a preferred substrate in hydroponic production due to its predictable structure and inert profile. These 150mm cubes allow growers to:
- Standardize irrigation schedules across multiple rooms
- Reduce variability between plant sites
- Minimize transplant stress from propagation to production
- Maintain cleaner grow floors through directed drainage
How to Use
- Pre-condition: Saturate cubes in pH-adjusted water (5.5–5.8) until evenly hydrated.
- Insert propagation plug: Place clone or seedling into the donut-ring chamber.
- Irrigate with runoff: Maintain 10–20% runoff to stabilize EC levels.
- Monitor substrate data: Adjust irrigation frequency to manage dry-back strategy.
Specifications
- Material: Stone wool (rockwool)
- Sizes: 150 × 150 × 150 mm; 150 × 150 × 100 mm
- Design: Donut-ring planting hole with bottom drainage grooves
- Systems: Compatible with drip, ebb & flow, and run-to-waste irrigation
- Applications: Hydroponic production, commercial greenhouse cultivation, controlled-environment agriculture