3/8" Bluestone (.5 cu ft)

This product is OMRI Listed. The OMRI Listed® seal assures the suitability of products for organic production, handling, and processing.

The US Composting Council advances compost manufacturing, compost utilization, and organics recycling to benefit our members, society, and the environment.

This product has been quality tested by Waypoint Analytical. Waypoint Analytical is one of the largest agricultural laboratory groups and among the top 50 environmental lab groups in the United States.