Grodan Pargro Quick Drain Block 4" X 4"

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Easy to use stone wool for consistent results without the need for sophisticated irrigation schedules. Pargro is lightweight stone wool made from basalt rock. It's a highly uniform substrate that's pathogen, disease and seed free. The Pargro family of products are made in the most popular Grodan sizes and give you complete control over your plants. Rapid water distribution and excellent re-saturation capabilities at a value price. Show more