Expanded slate nubs
This natural slate stone is lightweight and porous, used for biofilter media and hydroponics. The stone size is approximately 1/2 inch.
- The description claims the stone is made by heating slate to 2,000 degrees.
Specifications
- Weight
- 3 ounces, 1 pound
Variants (2)
- 3 ounces — 6.95 USD — In stock
- 1 pound — 13.95 USD — In stock
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