Professional Growing Media

Cannabis Rock Wool Growing Block 15P

Model: RM-15P

The Cannabis Rock Wool Growing Block 15P (RM-15P) provides excellent rootzone water-oxygen balance for high-yield cannabis. Use it standalone or stacked on grow slabs, enabling precise crop steering and hydroponic nutrient uptake.

Grofine Cannabis Rock Wool Growing Block 15P for commercial indoor cannabis cultivation

Key Product Benefits

Consistent Batch Format

Manufactured with a highly uniform fiber density, helping limit block-to-block variation and support repeatable water management across your entire commercial canopy.

Precision Crop Steering

The optimized air-filled porosity allows for rapid, predictable dry-backs. It seamlessly supports dynamic P1, P2, and P3 irrigation phases when irrigation is managed appropriately.

Root Development

Creates an ideal breathable micro-climate that supports root-zone aeration, stimulating vigorous lateral root branching and maximizing EC/pH stability.

Custom Drainage Configurations&

Available with tailored basal grooves and pre-drilled hole options to match your specific benching style, effectively minimizing nutrient run-off pooling.

Product Specifications

Product
Cannabis Rock Wool Growing Block 15P
Pre-cut hole
1. Standard:1 pre‑drilled hole per cube
2. Custom hole size
Grooves/Planting Ring
Included
Film
Wrapped in silver/white film
Application
For final‑stage cannabis cultivation
Compatibility
Standalone or on grow slabs, for harvest or root expansion.
Safety
Microbe-free, pathogen-free, non-toxic

Brands: Multiple options available.

Standard Configurations

Block Size (L × W × H)mmHole SizeHole LayoutBase Grooves (Bottom Drainage)
6 × 6 × 5.6 in (150 × 150 × 140 mm)φ1.57 in (40mm) × H1.57 in (40 mm)Single HoleFlat / Single Groove / Multi-Groove
CustomCustomCustomFlat / Single Groove / Multi-Groove

Other sizes, hole diameters, layouts and groove designs are available upon request.

Usage & System Compatibility

Frictionless Transplant Integration

Sized to accept standard rock wool propagation plugs, transitioning into large-scale block-to-slab commercial production setups.

Automated Fertigation Ready

Designed for immediate integration with precision drip emitters and ebb-and-flow systems, offering volumetric water content (VWC) monitoring.

High-Intensity Cultivation Support

Built with resilient structural integrity to support massive vegetative expansion and sustain demanding watering cycles all the way through to harvest.

Need a High-Performance Substrate for Commercial Growing? 🍃

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