Grodan Improved Gro-Slab, 36 x 6 x 4 with three 4 x 4 pre-cut holes

Wide-Steering-Range Pre-Cut Gro-Slab, 36in x 6in x 4in

Grodan Improved Pre-Cut Gro-Slabs offer a wide control range to steer crops using irrigation strategies, featuring the Advanced Wetting Agent for more uniform WC and EC distribution throughout each slab.

This 36in x 6in x 4in slab has three 4in x 4in pre-cut holes, giving fast, vigorous growth and uniform stem development throughout the cultivation period.

Key Features & Benefits

• Advanced Wetting Agent — retains sufficient moisture and minimizes the risk of plants drying out
• Easy Irrigation — growers can vary water volume within a safe 55%-78% day-level range
• Fast, Uniform Root Development — vertical fibrous structure lets roots penetrate the slab easily
• Excellent Steerability — even WC and EC distribution supports precise crop steering

Who Should Use Grodan Improved Pre-Cut Gro-Slabs

Suited to growers seeking a reliable substrate that facilitates easy irrigation and leaves nothing to chance throughout the cultivation period.

About Grodan

Grodan manufactures stone wool growing media, including cubes, blocks, and slabs engineered for consistent water and root development.

Frequently Asked Questions

What does the Advanced Wetting Agent do?

It gives more uniform water distribution throughout the slab, minimizing the risk of plants drying out.

What hole configuration does this slab have?

Three 4in x 4in pre-cut holes.

What are the dimensions?

36in x 6in x 4in.

Can the slab be re-saturated quickly?

Yes, if underwatered it can be re-saturated quickly at any desired moment.