Pargro Rockwool Slab - 36 x 8 x 3-in - 3 Pre-Cut Holes - Bagged - Case of 12

Ready-to-Place Slab With Pre-Cut Planting Holes - 36 in Long - Case of 12

Setting up a hydroponic bed means getting a stable medium in place and keeping water spread evenly. This slab has three pre-cut holes, so you can position it and start without cutting your own openings. Its structured rockwool body supports uniform water distribution and root development.

This single slab suits growers who want to trial the format, fill a small bench, or add to an existing setup. Larger operations can scale up from the same format.

Key Features & Benefits

• 3 pre-cut 10x10 holes — cuts preparation time when placing plants.
• 36 x 8 x 3 in dimensions — a consistent footprint for planning bench or tray layouts.
• Structured rockwool medium — supports even water distribution and root development.
• Bagged packaging — keeps the slab together for handling and placement.

Who Should Use Pargro Rockwool Slab

Hydroponic growers, from home gardeners to licensed commercial operations, who want a structured medium for efficient irrigation and nutrient management.

About Pargro Rockwool Slab

Pargro Rockwool Slab is a rockwool hydroponic growing medium measuring 36 in long, 8 in wide and 3 in high. It has three 10x10 pre-cut holes and comes bagged. It is sold individually.

Frequently Asked Questions

Q: How big is this slab?
A: It measures 36 in long, 8 in wide and 3 in high. That makes layout planning straightforward.

Q: How many pre-cut holes does it have?
A: It has three 10x10 pre-cut holes. They are ready for plant placement.

Q: Do I get one slab or a bundle?
A: This listing is for a single slab, sold each.

Q: Is it suitable for small and large setups?
A: Yes. The format suits small and large growing environments.

Q: What is a rockwool slab?
A: It is a structured block of rockwool used as a hydroponic growing medium. It holds water and gives roots a stable place to develop.

Q: How should I irrigate it?
A: Follow your system's irrigation and nutrient plan. The slab is designed to support efficient irrigation and nutrient management.