50 Spawn Jar Lids - 100 Injection Ports - 128 .22 Micron Gas Exchange Filters (Wide Mouth)
50 Spawn Jar Lids - 100 Injection Ports - 128 .22 Micron Gas Exchange Filters (Wide Mouth)
Couldn't load pickup availability
Warranty & Refund Policy
Warranty & Refund Policy
Growing Supplies Warranty and Refund Policy
- We accept returns for all of non-substrate mushroom growing products in new condition with the original packaging within 30 Days after placing your order, with the exception of Agar Agar.
- Shipping fees and sales tax are non refundable.
- Buyer pays return shipping.
- We issue store credit only.
- No returns on sale items.
Rewards Program
Rewards Program
Set up an account and you'll automatically be enrolled. Start earning $5 in rewards for every $100 spent. Join Here
SKU: SKU:50DIYWML
This Spawn Jar Lid Kit includes everything you need to build your own spawn and liquid culture jar lids. Each wide-mouth lid is precision pre-punched to exact specifications, making assembly quick, simple, and reliable—even for beginners.
The kit allows for flexible setup preferences: some growers install the gas exchange filter beneath the lid for liquid culture and spawn jars, while others prefer mounting the filter on top of the lid. Both configurations work great, so you can build them the way you prefer.
What’s included:
- 50 pre-punched wide-mouth mason jar lids
- 100 self-healing injection ports
- 128 self-adhesive 0.22 micron gas exchange filters
Assembling your own lids not only gives you full control over your setup, but also saves you money compared to buying pre-assembled lids.
