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- Horticulture Grade Pumice
- pH neutral
- Very well screened from 1/4″ – 3/8″ with minimal fines
- Excellent potting soil amendment
- Commercial quality
This fits your .
Our 1/2 cubic foot box of pumice is horticulture grade, pH neutral, and well screened 1/4″ – 3/8” and containing very little to no fines. It is primarily used for its ability to amend and improve garden soil by providing improved aeration and moisture retention. This product is mined and screened from northern New Mexico.