Greengrow Upuper 4x4x2.5 Cube - CB 100S - Case (252 Pcs)

Product Description UPuper®CB 100S grow cubes can be used as an intermediary or final container for planting. Cubes provide a high-quality stonewool substrates for hydroponic and indoor cultivation.Large size of root development zone will help plants growing better. Product Specification Product model: CB 100S Single size: 4 *4 *2.5 (L*W*H（inch)) Hole Size: φ1",H1.38" Grooves: Have Film: Have white film wrapped. Package: 252 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 and prevent algae growth. 2. Easy to transport without hurting the roots and can improve transplanting efficiency. 3. Give roots more growing space. 4. Better water and fertilizer retention. 5. Uniform water content and electrical conductivity distribution throughout cubes. 6. Grooves can facilitate water drainage and provide air pruning on root system. 7. Rapid root system development. Application UPuper® CP T25/CP T36/CP R20 stater plugs fit snugly into the pre-formed hole on the top of the 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.