Mushroom growing bags - Medium x 10 (1kg) with injection port -
SHRUM Grow Kit by Advanced Mycology
Mushroom Bags,Mushroom Grow Bag/Farm-Mushroom Spawn Bags/Sealable Spawn/Myco Bags,Large Size 8" X 5" X 19",0.5 Micron Filter, 3 Mil Polypropylene,for Su,for Substrate Autoclavable Mushroom Cultivation : Amazon.co.uk: Business, Industry & Science
Amazon.com : [50 Pack] Mushroom Growing Bags Mushroom Spawn Bags - Large Extra Thick 6 Mil Bags 6" X 5" X 20" 0.2 Micron Filter Breathable - Autoclavable Bags That Stand Up -
Multi Filter Strips Medium Mushroom Grow Bag Autoclavable Spawn Incubation Bag with a Micro-porous Filter Patch : Amazon.co.uk: Business, Industry & Science