Mushroom Jar Lid for Liquid Culture Stainless Steel Metal Wide Mouth (12 Pack)
- this version is designed specifically for liquid culture cultivation (not grain spawn), because they feature a hydrophobic PTFE filter which can be held upside down and not leak. If you would like lids for grain spawn, which need more fresh air exchange, checkout our other listings..
- professional series wide mouth stainless steel mason jar lids are engineered for reliable repeated use and lasting durability. Designed to make hundreds of runs through the autoclave or pressure cooker..
- made of 304 Stainless Steel metal to prevent the rusting of standard metal lids. A solid one-piece design and construction makes them simpler to use and clean. Each lid includes a fitted silicone seal that stays in lid when held upside down..
- They feature a huge 1/2" heavy duty self-healing injection port and a high quality 0.45 PTFE hydrophobic filter so the jars can be held upside down without leaking..