
Six equipped lids per pack
Grow Supplies
Wide-Mouth Liquid Culture Jar Lids with Syringe Filters and Injection Ports
6-Pack
Turn six wide-mouth Mason jars into practical culture jars. Each lid features a 0.22 μm syringe filter for gas exchange and a self-healing injection port for adding or withdrawing liquid culture with a syringe.
- Six equipped lids per pack
- Fits wide-mouth Mason jars, including compatible quart jars
- 0.22 μm syringe filter for gas exchange
- Self-healing injection port for syringe access
- Jars, liquid culture, and syringes are not included
Wide-mouth jars only
These lids fit wide-mouth Mason jars. “Quart” describes jar capacity, not mouth size. Some quart jars are regular-mouth and will not fit these lids. Please check that your jars are wide-mouth before ordering.
A lid for every jar
Set up multiple culture jars without building each lid yourself. This six-pack gives growers a dedicated lid for each jar, so they can keep different cultures labeled and separate.
The syringe filter allows gas exchange while helping limit airborne contamination. The self-healing port provides access for introducing or withdrawing liquid culture without taking off the lid.

Two ports, one lid
Each lid carries a 0.22 μm nylon syringe filter for gas exchange and a self-healing injection port for syringe access — so you can inoculate or sample without removing the lid.
Caption: Dual-port lid design — inject without removing the lid.

Fits your wide-mouth jars
These lids fit wide-mouth Mason jars, including compatible wide-mouth quart jars. Check that your jars are wide-mouth before ordering — “quart” describes capacity, not mouth size, and some quart jars are regular-mouth.
Caption: Fits wide-mouth Mason jars (jars not included).
How to use your culture lids
Fit a lid onto a compatible wide-mouth jar prepared with an appropriate sterile medium. Work as cleanly as possible. Sanitize the injection port before syringe access, use a sterile needle, and avoid wetting the syringe filter.
Label each jar with its culture and date. Check cultures for contamination before using them to inoculate grain. The filter helps reduce contamination risk but does not guarantee a sterile culture.








