{"product_id":"150mm-cultiwool-rockwool-grow-cubes-donut-ring","title":"Cultiwool Rockwool Grow Blocks – 150 mm Donut Ring","description":"\u003cp\u003e\u003cstrong\u003ePallet shipping:\u003c\/strong\u003e Pallet orders require a freight quote and cannot be completed through standard online checkout. Contact 454 Bags before ordering a pallet so we can confirm delivery details and the total shipping cost. Case and single-roll options, where offered, remain available through standard checkout.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCommercial-grade 150mm rockwool cubes engineered for uniform irrigation, controlled dry-back, and scalable hydroponic production.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eProfessional Rockwool Cubes for Controlled Environments\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCultiwool 150mm Rockwool Cubes with Donut Ring\u003c\/strong\u003e are built for commercial cultivation where irrigation precision and crop consistency matter. Designed for large-scale hydroponic systems, these cubes eliminate uneven hydration, prevent dry cores, and provide a stable root zone across every block in your facility.\u003c\/p\u003e\n\u003cp\u003eThe integrated \u003cstrong\u003edonut-ring planting chamber\u003c\/strong\u003e distributes water evenly from the drip point outward, improving saturation uniformity and reducing channeling. Bottom drain grooves promote runoff control and keep production areas cleaner during heavy irrigation cycles.\u003c\/p\u003e\n\u003ch2\u003eWhy Commercial Growers Choose Donut Ring Cubes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven water distribution:\u003c\/strong\u003e Circular planting cavity improves hydration balance and reduces dry pockets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved runoff control:\u003c\/strong\u003e Bottom grooves move excess solution away from the root zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent fiber density:\u003c\/strong\u003e Uniform porosity supports predictable oxygen and moisture balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable, inert media:\u003c\/strong\u003e Allows precise EC and pH steering in controlled irrigation programs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for scale:\u003c\/strong\u003e Case and pallet quantities support continuous commercial cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable Cube Sizes (Metric)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 × 150 × 150 mm\u003c\/strong\u003e – Extended root zone for longer vegetative cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 × 150 × 100 mm\u003c\/strong\u003e – Reduced height for tighter canopy management and faster dry-back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOperational Benefits at Scale\u003c\/h2\u003e\n\u003cp\u003eRockwool remains a preferred substrate in hydroponic production due to its predictable structure and inert profile. These 150mm cubes allow growers to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandardize irrigation schedules across multiple rooms\u003c\/li\u003e\n\u003cli\u003eReduce variability between plant sites\u003c\/li\u003e\n\u003cli\u003eMinimize transplant stress from propagation to production\u003c\/li\u003e\n\u003cli\u003eMaintain cleaner grow floors through directed drainage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-condition:\u003c\/strong\u003e Saturate cubes in pH-adjusted water (5.5–5.8) until evenly hydrated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert propagation plug:\u003c\/strong\u003e Place clone or seedling into the donut-ring chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrrigate with runoff:\u003c\/strong\u003e Maintain 10–20% runoff to stabilize EC levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitor substrate data:\u003c\/strong\u003e Adjust irrigation frequency to manage dry-back strategy.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stone wool (rockwool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 150 × 150 × 150 mm; 150 × 150 × 100 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Donut-ring planting hole with bottom drainage grooves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystems:\u003c\/strong\u003e Compatible with drip, ebb \u0026amp; flow, and run-to-waste irrigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Hydroponic production, commercial greenhouse cultivation, controlled-environment agriculture\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cultiwool","offers":[{"title":"150 × 150 × 150 mm \/ Case - 48 Cubes","offer_id":48075421417729,"sku":null,"price":151.96,"currency_code":"USD","in_stock":true},{"title":"150 × 150 × 150 mm \/ Pallet - 768 Cubes","offer_id":48075421450497,"sku":null,"price":1920.0,"currency_code":"USD","in_stock":true},{"title":"150 × 150 × 100 mm \/ Pallet - 1280 Cubes","offer_id":48075421483265,"sku":null,"price":2880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/files\/6x6x6-cultiwool-block_87a00671-60d3-4ea0-87f5-e50bf598ebb3.jpg?v=1771129972","url":"https:\/\/454bags.com\/en-eu\/products\/150mm-cultiwool-rockwool-grow-cubes-donut-ring","provider":"454 Bags","version":"1.0","type":"link"}