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Greengrow Upuper Rockwool Cube - CB 100L - Case (144 Pcs)


Product Description

UPuper® CB 100L 4-inch Rockwool cubes are a good size for transplanting or large plants, featuring a standard-size rockwool pre-cut planting hole for easy transplanting.

Product Specification
Product model: CB 100L
Single size: 4 *4 *4 (L*W*H(inch))
Hole Size: φ1",H1.38"
Grooves: Have
Film: Have white film wrapped.
Package: 144 pcs/carton
*Any other size request, please contact us online!

Product Parameter (Property: Value)

  • Bond strength: NA
  • Sink time: <10s
  • Water absorption rate: >=900%
  • Organic matter content: <1.5%
  • Meet GMP Hygiene requirements (Bioburden test): No microorganisms
  • Content of toxic and harmful heavy metals: Not detectable levels

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 and fertilizer retention.
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.

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

Practice 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.

Greengrow Upuper Rockwool Cube - CB 100L - Case (144 Pcs)



  • What's the advantages of hydroponic culture?

    Hydroponic vegetables provide nutrients and water directly to the roots through nutrient solutions, making their nutrient supply more sufficient, balanced, and rapid. Vegetables grown in this way have yields several times or even more than ten times higher than those grown in traditional soil or substrate cultivation.

  • What's the advantages of rock wool cultivation?

    Agricultural rock wool cultivation is the most advanced cultivation technology in modern agriculture. From cultivation facilities to environmental control, it can be monitored and regulated according to the needs of crop growth and development. Therefore, agricultural rock wool cultivation has advantages that traditional soil cultivation cannot surpass.

  • I'm a business grower, can I get a discount?

    Yes, we offer wholesale discount for business growers. If you're shopping in volume, please contact us for the wholesale price and any other discount programs that you may be eligible.