3" Adhesive Monotub 100% Cotton Disc Filters
These high airflow filters give your substrate and mycelium fresh air while maintaining high humidity levels. Manufactured with a strong 3M adhesive backing, these filters are made from 100% Cotton filter material and sized to fit over 3" holes. Filters are slightly larger than monotub holes and are designed to keep out foreign spores and other contaminants. Use them in place of polyfill for time savings, fast application, and better protection against unwanted contamination.
Hole size: 3in
Filter size: 90 mm diameter
3" Adhesive Monotub 100% Cotton Disc Filters - 4 filters (1 sheet) is backordered and will ship as soon as it is back in stock.
3" Adhesive Monotub 100% Cotton Disc Filters
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