Cultiwool 8-in Wide Stonewool Slab - Fully Sealed - Vertical Fibre - 12 Count

Consistent Stonewool Substrate for Hydroponic Beds - 12 Slabs Per Unit

Uneven substrate makes irrigation and root zones hard to manage from one plant to the next. Cultiwool stonewool slabs are a fully sealed, vertical-fibre substrate built to give each plant a uniform root environment through vegetative growth and flowering. The distributor describes the slabs as made for consistent homogeneity, and they are used in professional cultivation.

This listing is one unit containing 12 slabs, which suits growers filling several beds or gutters in one order, from a regular indoor grower to a commercial room. Trial growers can start with one unit and scale up once the slabs fit their system.

Key Features & Benefits

• Fully sealed construction — keeps the slab contained and tidy to handle and place.
• Vertical fibre orientation — comes as standard, which supports a consistent root zone through the slab.
• Stonewool material — a familiar inert substrate for hydroponic systems.
• 12 slabs per unit — covers multiple positions in a single purchase.

Who Should Use Cultiwool 8-in Wide Slab

Growers running hydroponic systems who want a stonewool substrate sold in multiples. It suits indoor and commercial cultivation where uniform slabs make feeding routines easier to repeat.

About Cultiwool 8-in Wide Slab

Cultiwool makes stonewool growing slabs in several dimensions, with the option of pre-cut plant holes, to fit different growing systems and substrate volumes per crop. This unit holds 12 fully sealed stonewool slabs with vertical fibre orientation. Shipping weight is 18 lb, and the packed dimensions are 36 x 24 x 12 in.

Frequently Asked Questions

Q: How many slabs come in one unit?
A: One unit contains 12 slabs. The listing is sold as a single unit.

Q: What is fibre orientation?
A: It describes the direction the stonewool fibres run inside the slab. These slabs come with vertical fibre orientation as standard.

Q: What does fully sealed mean?
A: The slab is fully enclosed in its wrap rather than left open. This keeps it contained during handling and placement.

Q: Is the slab suited to hydroponic systems?
A: Stonewool slabs are a common substrate in hydroponic cultivation. Check that the slab size fits your gutters or trays before ordering.

Q: How heavy is a unit?
A: The shipping weight is 18 lb. Plan handling and storage space accordingly.