Mason Jar Spawn / Liquid Culture Lids (12) w/ Injection Port and Gas Exchange Filter Size:Regular Mouth Spawn Jar Lids Key Highlights:

Key Highlights:

and highly effective

biology nerds

Food-grade gypsum is safe for human consumption and is regulated by food safety agencies

pet breeding devices

Mason Jar Spawn / Liquid Culture Lids (12) w/ Injection Port and Gas Exchange Filter Size:Regular Mouth Spawn Jar Lids Key Highlights:Each order includes 12 lids designed specifically for mushroom spawn and BRF jars. These lids feature an embedded silicone ring to prevent contamination. Each lid is equipped with a 13mm self healing injection port and a . 22 micron gas exchange adhesive filter. Available for both Regular Mouth and Wide Mouth jars. Please note that jar bands are not included, and lids should be handled carefully to avoid bending.