Injection ports and filter patches explained

Two small parts do a lot of work on a grow bag: the injection port and the filter patch.

Injection port

The injection port is the self-healing spot used for syringe work. It lets you work without opening the bag.

Filter patch

The filter patch allows gas exchange while helping keep unwanted particles out.

Why it matters

If you are buying all-in-one bags or sterile grain bags, look for both. They make the work cleaner and simpler.

Shop all-in-one grow bags or shop sterile grain bags.