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Our plastic autoclavable wide mouth mason jar lids are built to be functional and affordable. Designed specifically for liquid culture cultivation, they feature a hydrophobic PTFE filter which can be held upside down and not leak. Our lids feature super heavy duty medical grade self-healing injection ports, and we seal each hole with high temperature silicon. Each lid comes with a reusable silicon gasket ring for an airtight seal. This type of lid must be left a 1/4 turn open when pressure cooking, and fully tightened when cooled.
- 1/2" heavy duty self-healing injection port
- wide mouth polypropylene plastic autoclavable lid
- sealed using high temp red RTV gasket silicon
- .45um air-exchange syringe filter
- 86mm silicon gasket ring