6 BALL LEAKPROOF WIDE Mouth Black Mycology lc lid w/ Self Healing Injection Port

Hello thank you for joining me in the world of mushroom making.6 Lids For Wide Mouth Jars*All lids are specifically grey colored Ball Leak-Proof lids.*All lids are PP5 and safe for pressure cooker sterilization. Filters are sealed with RTV gasket seal on both sides of the lid.*All lids are reusable and all parts are replaceable.*All lids have self-healing injection ports & .2 micron filter air exchange filters.*If you order only 1 lid in your order, it will be shipped via stamp mail to keep the price down. 5-7 days shipping is standard for this.