Greengrow Upuper 4x4x4 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 SpecificationProduct model: CB 100LSingle size: 4 *4 *4 (L*W*H（inch))Hole Size: φ1",H1.38"Grooves: HaveFilm: 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 Advantage1. 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 facilit