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 SpecificationProduct model: CB 100SSingle size: 4 *4 *2.5 (L*W*H（inch))Hole Size: φ1",H1.38"Grooves: HaveFilm: 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 Advantage1. 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 fertil