These Unicorn Type 14-A Blackout bags feature a light-blocking black design to help reduce side pinning and promote consistent top fruiting. Made from durable 2.2 mil polypropylene, they include the same high-quality 1.5” x 1.5” 0.5 micron filter for excellent gas exchange while maintaining contamination protection.

They are ideal for standard grow blocks when testing new varieties or starting production and are sized to hold 5–7 lbs of substrate. These are genuine Unicorn Bags, made in the USA to the high-quality standards the brand is known for. The polypropylene construction makes them fully autoclavable.

You can save time by pairing these bags with MushroomMediaOnline’s Fast Fruiting Mix, a 50/50 hardwood sawdust substrate supplemented with 50% soy hulls.

Free shipping is included with your purchase of a bag from MushroomMediaOnline.com. We work to secure the best shipping rates, so the larger your order, the more you save.