Myco Labs 28Q Cube Monotub 2-Pack Fruiting Chambers — 12in Stackable Polypropylene with Filter Disks & Liners

The Myco Labs Grower's Select 28Q Cube Monotub 2-Pack is a compact, stackable fruiting chamber kit that includes filter disks, liners and plugs for controlled air exchange and reliable substrate yields.

This two-pack of 28-quart monotubs is built from high-density polypropylene for long-lasting durability and consistent performance across repeated grows. Each cube measures 12" x 12" x 12" OD and ships complete with eight 2.5" monotub filter disks, two heavy-duty liners and eight plugs so you can set up, incubate and fruit with fewer add-ons. The design emphasizes optimized air exchange, easy incubation control and space-saving stackability — useful whether you’re managing a single experimental tub or a multi-tub workflow.

How does the monotub manage airflow during incubation and fruiting?

Airflow is regulated through four strategically placed air holes that accept the included 2.5" filter disks, and the kit provides snug plugs for controlling exchange during incubation. This lets you reduce drafts while maintaining a microclimate conducive to colonization, then open things up for consistent fruiting once substrate is ready.

• Four air holes pre-cut for even gas exchange.
• Eight 2.5" Monotub Filter Disks to filter incoming air.
• Eight plugs to seal holes during early incubation stages.
• Quickly switch from low to higher exchange without modifying the tub.

What are the size and material benefits of the 28-quart cube?

The 28-quart cube balances room for a robust bulk substrate with a compact footprint for limited-space setups. Made from high-density polypropylene, each monotub resists warping and is easy to clean, giving you a reusable container that stands up to moisture and handling.

• 12" x 12" x 12" outer dimensions for a true cube layout.
• 28-quart capacity—sized for single-batch bulk grows.
• High-density polypropylene resists moisture and cracking.
• Smooth surfaces for easier sanitation between runs.

How many tubs can I stack and what load will each support?

These monotubs are engineered with a stackable base that supports an organized vertical array, saving floor space in tight grow areas. Each tub is rated to support up to 150 lbs, and the base geometry allows stacking up to ten bins depending on your overall setup and support surface.

• Stackable base design for space-efficient storage.
• Each cube supports up to 150 lbs of load.
• Stack up to 10 bins when placed on a stable surface.
• Perfect for scaling from a single tub to a multi-tub shelf system.

What substrate and spawn amounts work best for this tub?

The 28Q Cube is sized for modest bulk substrate loads that still yield well when managed correctly. Recommended grain spawn and bulk substrate ranges help you plan substrate mixing and expected colonization dynamics without overcrowding the tub.

• Ideal grain spawn per tub: 32–48 oz (1.0–1.5 lbs).
• Recommended bulk substrate: 4–5 lbs per tub.
• Room to adjust bed depth for differing species or techniques.
• Compatible with a range of substrate recipes and layering strategies.

Who is this for? The Myco Labs Grower's Select 28Q Cube 2-Pack is aimed at hobbyists and small-scale growers who want a reliable, reusable monotub system with built-in filtration and incubation controls. It’s especially useful for growers needing a compact footprint, repeatable results, and the ability to scale vertically. If you value durable materials, quick setup and clear airflow management without extensive modification, this kit is made to simplify routine grows while preserving flexibility.