6 pc. 'Regular Mouth' Culture Jar Lid with Port & Filter

Reliable liquid culture work starts with a well-designed vessel closure. The 6 pc. “Regular Mouth” Culture Jar Lid with Port & Filter set provides six durable lids for standard regular-mouth mason jars, giving indoor growers a practical foundation for organized culture preparation and storage.

Each lid is constructed from 304 stainless steel, a corrosion-resistant material selected for repeated use in demanding lab and cultivation environments. Unlike many basic jar lids, stainless steel offers a sturdy, long-lasting alternative that is less prone to rust and deformation.

The integrated injection port supports convenient inoculation with a sterile syringe, while the filtered air exchange port allows necessary gas exchange without leaving the jar fully exposed to the surrounding environment. Together, these features help streamline routine culture workflows.

Use these culture jar lids for liquid culture, grain preparation, or other applications requiring controlled access and filtered ventilation. The regular-mouth format fits compatible standard mason jars, making it easy to incorporate the lids into an existing setup.

For best results, clean and sterilize the lids according to your established laboratory procedure before use. Inspect the injection port and filter regularly, and replace components if they become damaged or compromised.

Designed for beginners building their first mycology lab as well as experienced cultivators refining a repeatable process, this six-piece culture jar lid kit brings dependable construction and practical functionality to indoor mushroom cultivation.