


Cultiwool 6" x 6" x 4" Block w/ Optidrain (Case of 64)
Quick answer
Cultiwool 6" x 6" x 4" Block w/ Optidrain (Case of 64) should be chosen by water retention, drainage, container size, crop stage, and how often you want to irrigate.
Shopping guidance from Toledo Indoor Garden. Prices, availability, shipping rates, weights, and dimensions are verified during checkout.
Description
Cultiwool 6" x 6" x 4" Blocks with Optidrain are premium growing blocks for serious cultivators.
The Optidrain cross-groove base ensures efficient drainage and optimal oxygen availability, while the industry-first Donut Ring promotes perfectly uniform water distribution.
These blocks maintain excellent dimensional stability under intensive crop cycles, and the homogeneous fiber structure supports even water uptake and stable root development.
Ideal for medium to large plants in both medicinal and vegetable production.
Weight: 23 lbs.
This Cultiwool item is listed in Growing Media under Rockwool, giving shoppers a clear fit point in the Toledo Indoor Garden catalog.
- Optidrain cross-groove base for efficient drainage
- Donut Ring for uniform water distribution
- 38mm / 40mm plug hole for standard drippers
- Excellent dimensional stability under intensive use
- Homogeneous fiber for even water uptake
- Clean and inert — hygienic, pest-free root environment