-60%
ROOT!T Heat Mat Thermostat Original price was: £29.99.£24.99Current price is: £24.99. Inc VAT
Cultiwool CRB Trays Price range: £8.49 through £156.99 Inc VAT
Cultiwool Rockwool Cubes
Price range: £0.40 through £142.99 Inc VAT
High-quality Cultiwool Rockwool Cubes designed for even water distribution, strong root development, and reliable performance in hydroponic systems.
Description
Cultiwool Rockwool Cubes
Cultiwool Rockwool Cubes are premium-quality stone wool blocks designed for reliable, uniform performance in all hydroponic systems. Manufactured for superior water distribution and firmness, they create an ideal rooting environment for vigorous early growth.
Available in 3″ (75 mm) and 4″ (100 mm) sizes, with either 25 mm (small hole) or 36 mm (large hole) planting holes, these blocks suit a wide range of propagation plugs—including Cultiwool plugs, Root Riot cubes, and Jiffy Pellets.
Made from clean, inert basaltic rock, Cultiwool blocks provide a sterile medium free from contaminants, ensuring that all nutrients and water remain fully available to your plants. Their consistent density and structure deliver excellent air-to-water ratios, supporting fast root development and smooth transplanting into larger blocks or rockwool slabs.
Key Benefits:
Premium rockwool cubes for hydroponic systems
Even water distribution and excellent air retention
Fully inert, sterile and free from contaminants
Available in 3″ or 4″, or 6″ block sizes
Choice of 25 mm or 36 mm hole sizes for the smaller blocks
Compatible with Root Riot, CRB Plugs and Jiffy pellets
Ideal for transplanting into larger rockwool blocks or slabs
About brand
Cultiwool is a specialist manufacturer of premium rockwool growing media designed for professional propagation and hydroponic cultivation. Known for its consistent fibre structure, stable pH, and excellent water-to-air ratio, Cultiwool products create an optimal root zone environment that supports fast root development, strong early growth, and reliable nutrient uptake.
Widely used in commercial grow facilities and advanced home setups, Cultiwool growing media offers predictable performance across every stage of cultivation — from seed germination and cloning through to full crop cycles. The range includes Rockwool Cubes (3”, 4”, and 6”) for transplanting, CRB Trays for uniform rooting and system integration during propagation, and Slabs for high-performance hydroponic growing systems - Ideal for stacking your Cubes on.
Designed for ease of use, consistency, and crop uniformity, Cultiwool substrates help growers achieve healthier root systems, improved plant stability, and more controlled irrigation and feeding programs — making them a trusted choice for precision growing environments.
Why Choose Cultiwool?
Premium rockwool substrates with consistent fibre structure
Excellent water retention and oxygen balance for root health
Ideal for propagation, transplanting, and hydroponic systems
Available in cubes, CRB trays, and slabs to suit all grow stages
Trusted by professional growers for reliability and uniform results
Shipping & Delivery
DELIVERY TIMEFRAME
We aim to process and dispatch all orders within 2 working days of being placed. Wherever possible, parcels are sent on a next working day service to ensure you receive them quickly and reliably.
When your order is dispatched, you will receive a confirmation email with tracking information so you can closely monitor your delivery every step of the way.
Please Note: Delivery times may slightly vary during busy periods, or due to courier service disruptions. Rest assured, we always do our best to get your order to you promptly.
