Mark 1 Small Mushroom Monotub

The 28-Quart Monotub is a compact, efficient grow chamber designed for cultivators who want reliable performance in a smaller footprint. Ideal for beginners, small-batch growers, or those working with space constraints, this monotub delivers excellent surface area for fruiting while remaining easy to handle and store.

Made from super-dense polypropylene, the tub is built to last through multiple grow cycles, resisting warping, cracking, and humidity-related wear. Measuring 12" L x 12" W x 12" H, its cube-like shape optimizes surface area while maintaining manageable volume—perfect for testing new genetics, cultivating specialty strains, or maintaining a steady small-scale harvest.

Equipped with four strategically placed air exchange holes, the tub supports balanced fresh air exchange for healthy mycelium and mushroom development. Each hole includes a removable plug, allowing for full airflow control during incubation, consolidation, and fruiting stages.

The included drop-in liner hugs the substrate closely, minimizing side pinning and making post-harvest cleanup quick and sanitary. A stackable lid-and-base design allows you to safely stack multiple units, maximizing vertical space in grow rooms, closets, or tents.