2 Quart Mushroom Grow Bags with Injection Port and 0.2 Micron Air Filter. Are you looking for a convenient and reliable way to grow your own mushrooms at home? If so, you will love our 2 Quart Mushroom Grow Bags with Injection Port and 0.2 Micron Air Filter. These bags are specially designed for mushroom cultivation, featuring a self-healing injection port that allows you to easily inoculate your spawn with a spore syringe or liquid culture, and a 2 micron gas exchange filter that prevents contamination while ensuring optimal fresh air exchange for your mycelium. Our bags are made from high-quality polypropylene material that can withstand high temperatures of sterilization, and have a gusseted design that provides extra volume for your substrate. Whether you are growing gourmet, medicinal mushrooms, our bags will help you achieve the best results possible. Order yours today and start your mushroom growing adventure!