Features & Benefits
- ProLid professional series wide mouth stainless steel mason jar lids are the best liquid culture lids available.
- They are made of 304 Stainless Steel metal to prevent rusting.
- 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.
- The high-quality PTFE hydrophobic filter prevents leaking when held upside down.
- These lids are engineered for reliable repeated use and lasting durability.