For sale here are PP5 jar lids modified with a 22um filter disc and self-healing injection port (SHIP).
They are sealed with clear RTV as to not distract from your chosen color scheme.
SHIPs are 20mm with a 13mm opening. Filters are 22um with a 13mm diameter and their membranes are made of PTFE.
All materials are pressure cooker safe for all of your gourmet mushroom needs.
If the quantity you need is not represented here, please contact us at ORGourmetMushrooms@gmail.com for custom pricing. We offer a reduced rate for larger quantities.