Skip to content
Get FREE SHIPPING on Your Order Over $50!

Cultiwool 6 Inch Slab


Cultilene 6" Cultiwool Slabs

Cultilene 6" rockwool slabs provide a high-quality stonewool alternative for hydroponic and indoor cultivation. Each slab comes fully wrapped in a plastic sleeve to allow planting sites to allow full control of plant spacing and planting configuration. We offer these 6" rockwool slabs for sale individually so you can purchase the right amount to fit your needs.

  • Price includes (1) block
  • Measures 36"x6"x3"
  • Low density fiber with firm support

Cultilene rockwool slabs are an excellent substrate solution that will benefit your plants by helping to maintain proper oxygen, water content, PH, and temperature. Cultiwool X-Fibre slabs are unique for their optimum water distribution and excellent EC-control, not only within one slab but also between slabs. This creates a root environment with outstanding control and with far better and much more even growth and root distribution. Slabs are 36", long and are available in several different widths.


  • Rapid rooting into plug
  • Supports Healthy Root Growth
  • Great for transplanting
  • Fibre structure with a lower density and no loss of firmness
  • Vertical fiber structure
  • Excellent air to water ratio
  • Fast absorption of water
  • High water retention
  • Guaranteed firmness

In stock

Get FREE SHIPPING when you order $50 or more!
Your Garden's Success is our #1 Priority

HTG Supply is committed to providing you with the very best products, pricing and service in the industry. We will ship your order fast and discreetly packaged to protect your privacy. Buy with confidence knowing your HTG Supply purchase includes simple returns as well as lifetime product support. Call our team of real growing experts with your purchasing or product use questions, and we will be here to help!

See it for less somewhere else? Give us a call and we’ll beat any online competitor’s price!

Customer Service:  1-866-710-GROW (4769) | [email protected] | Hours: Mon-Fri 9:00 a.m. to 5:00 p.m.

This item is a variation (specific size, pack-size, color, option) of the product. To view all available sizes, pack sizes, and other options for this product, click the See all Sizes / Options button above.

Weight 2 lbs
Dimensions 36 × 6 × 3 in