Mark 1 Medium Mushroom Monotub Package

The Medium Monotub (44-Quart) is a versatile and durable solution designed to streamline the mushroom cultivation process for home and professional growers alike. With a 44-quart capacity and a compact footprint, it delivers exceptional yield potential while fitting easily on standard shelves, tables, or grow racks.

Constructed from super-dense polypropylene, this monotub is engineered to withstand repeated use, high humidity, and the weight of stacked units—supporting up to 10 tubs securely when stacked. Its outside dimensions (18" L x 15.5" W x 12" H) make it ideal for growing substantial volumes of bulk substrate while maximizing space efficiency.

To promote healthy mycelial growth and consistent fruiting, the tub includes six strategically placed air exchange holes. These facilitate balanced oxygen and CO₂ flow while maintaining high humidity levels inside. Removable plugs are included to help you control airflow during colonization, preventing contamination and moisture loss at critical stages.

A custom-fit liner is included, which hugs the substrate as it shrinks—minimizing side pinning and allowing for fast, clean disposal after harvesting. The included clips tightly secure the lid to the base, ensuring a stable and contamination-resistant seal throughout your grow cycle.

Included in the Package:

• 44-quart monotub (lid & base)
• 6 heavy-duty securing clips
• 6 adhesive air exchange filter disks
• 6 removable hole plugs
• 1 drop-in liner