Grodan Crop Box Slab Classic 550 x 370 x 150


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Sale price$59.00

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Description

Grodan Rockwool is a mineral wool made from molten basalt and limestone rock that is spun into cotton-candy like fibres and then compressed into cubes, blocks or slabs. Being made from natural rock, Grodan is a mineral based product used in hydroponic growing applications.
The WCB or Wrapped Crop Box Slab by GRODAN is designed to suit a 45litre crop box crate. They are called wrapped as they are supplied as individually plastic wrapped slabs and the wrapping is UV resistant. Featuring a predominantly horizontal fibre structure which allows for slow water movement through fibres, these slabs are best used where less frequent watering is required or in hot climates. These slabs are an ideal multi-year (2 year) slab.
To use, cut a hole or holes in the plastic to the size of the rockwool cube that you want to use with the slab. Fill the slab with water to moisten the rockwool, then flip the slab over and cut drainage slits in the bottom of the plastic across the width. Flip the slab back over and place your planted growing cubes on the previously cut-out holes in the top side of the slab. The plant roots will then grow through to the slab over time.

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Customer Reviews

Amelia W. 09/06/2025

Two thumbs up. It's a reliable piece of equipment that's built to last. Well worth the money.

Finn H. 03/07/2025

This is the duck's nuts, mate. Seriously good stuff. My plants are looking happier than a pig in mud.

Harper L. 04/07/2025

Chuffed with this. Great quality and easy to set up. Arrived in Tassie with no dramas at all.

Leo K. 05/07/2025

You beauty! This has made a world of difference. No more stuffing around with my old setup.

Ivy P. 06/07/2025

Works a treat! It’s a solid piece of equipment and the instructions were clear as day.

Oscar R. 07/07/2025

Good gear. It's sturdy and feels like it will last a long time. TG Hydroponics delivered the goods, literally.

Willow G. 08/07/2025

I'm over the moon with this. It's exactly what I needed. Five stars from me, for sure.

George T. 09/07/2025

Top quality, no doubt about it. You get what you pay for, and this is worth every cent.

Matilda B. 10/07/2025

I'm one happy camper. This product is fantastic and the delivery was faster than a rat up a drainpipe.

Arthur V. 11/07/2025

This is a must-have. Don't know how I managed without it. My setup is looking schmick.

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