Check the listing for details. Unicorn Bag Type XLS-T. Color: Clear. Listed at 20.79 USD. These 3.0 mil thick bags also have a 2”X 3” filter that is .2 micron size. The XLS-T is ideal for larger growth blocks from 10-15 lbs in size. These bags are the best going for your fruiting stage. The largest bags we offer these Unicorn bags are the industry leader for a reason. All of our Unicorn bags are Polypropylene which means they are autoclavable. As you expand your mushroom growing business, a major factor in your success is efficiency. Larger blocks help you be more productive, growing larger flushes each time. You can even save more time with MushroomMediaOnline’s own Fast Fruiting Mix that is that ideal mix of 50/50 hardwood sawdust substrate supplemented with 50 percent soy hulls. Free shipping with your bag purchase from MushroomMediaOnline.com We offer the lowest cost per bag by finding the very best shipping rates for your bag delivery. The larger your order size, the more you can save. Choose your purchase size and see the full price with free shipping included. Brand: Unicorn Model Number: XLS-T Material: 3.0 Mil Polypropylene Bag Size: 10″X 5″X 24″ Filter Size: 2”X 3” .2 micron Filter Type: T Typical Block Size: 10-15 lbs