Very even

Perfect control and even distribution of water and EC through the slab; that is OptimaXX in a nutshell. In addition, this slab guarantees good vegetative and generative steer ability.

More information

Stone wool slabs

Below you will find an overview with our basic assortment slabs. Slab sizes which are not included in the overview belong to our customer specific assortment slabs. Just like short slabs, these also belong to the customer specific assortment and are possible to order in accordance with Customer Service. Our assortment of basic slabs is a combination of the following length, width and height measurements.

REQ = on request possible. If you would like to have more information about the availability of the different stone wool slabs in your country, please contact our Customer Service.

Basic slabs

Floriculture slabs

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Big Five

Water amount


  • A slab with very good and fast control over EC and Water Content
  • Easy slab control for optimal plant balance
  • Exceptionally even water and EC distribution
  • Vegetative or generative steering

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