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4 inch Rockwool cubes -CB 100L

Product description

UPuper® 4-inch Rockwool cubes are a good size for transition planting (transplant) or finishing small plants, and they feature a standard-size rockwool pre-cut (planting) hole for easy (easily) transplanting of seedling starts.They can effectively retain moisture, and their unique 4-inch size provides the minimum processing capacity for optimal activity. They are also very suitable for storing water or additional nutrient solutions required for root system interactions.The water absorption capabilities of rockwool cubes also create a stable growing environment, as it is able to hold steady moisture levels between 30-40%, preventing rapid air humidity changes.

Product Specification

Product Advantage

1.Individually wrapped cubes hold the rockwool’s shape for transplanting without hurting the roots and preventing algae growth.

2.Give roots more growing space.

3. Better water,oxygen and fertilizer retention, ensuring that your plants have plenty of oxygen and moisture to thrive.

4.Uniform water content and electrical conductivity distribution throughout cubes.

5.Grooves can facilitate water drainage and provide air pruning on root system.

6.Faster rooting-in of plants.

7.Rockwool cubes are more convenient to use.

8.They are lightweight, making them easy to transport and handle.

9.Rockwool is resistant to bacteria, fungi, and other pests.


The 4-inch rockwool cubes can be used to fix plants in the hydroponic system, support root growth, and be used for Plant reproduction.

UPuper CP T25/CP T36/CP R20 stater plugs fit snugly into the pre-formed hole on the top of the 4″ rockwool cubes. Used as an intermediary container for cannabis planting.

Using TIPS:

1. You need pre-soak them before use.

2. Adjust pH of 5.5-6.5 for cannabis planting.

3. You can remove the wrapping of the grow cubes,cut it and mix it with the soil to improve the air permeability of the soil.

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upuper +86-21-39291299

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