Synthetic Jar Lid Filters

Spring Sale 10% Off!
PRICE: $7.20

Add these Jar Lid Filters to your jar lids to ensure your mushroom spawn has ample oxygen flow without the risk of contamination. Fully Autoclavable.


Free shipping available for orders $100 or more. Manufacturer Direct and special order items may require extra charges. See the Docs & Downloads section for product labels and other important information. Questions? Contact us!

Product Features List
  • Allows for maximum airflow without contaminating the environment
  • Sold in packs of 10

Synthetic Jar Lid Filters can be placed on top of a jar with ¼” holes to allow for maximum airflow in inoculated grain without compromising the environment. These are a great option for mycologist’s larger grain or spawn batches, as well as mycelium that thrive in higher oxygen environments or require a longer period of incubation. 


Please select a variation to see its technical specifications


Place on top of a drilled jar lid insert for mason jars, then screw the ring onto the jar to hold the lid filter in place.

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