Monotubs for Mushroom Growing | Bulk Fruiting Chambers – Midwest Grow Kits

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mushroom monotub with filter disks

Monotubs

(8 products)

A monotub is the most popular fruiting chamber in modern mushroom cultivation — a sealed tub with filtered air holes that creates the humid, oxygenated environment mushrooms need to produce big flushes. Our Growers Select monotubs take the guesswork and the drilling out of the equation: every tub is custom-molded with air holes already in the perfect positions, so you can spawn and fruit right out of the box.

These aren't repurposed storage totes. Our tubs are custom-designed and injection-molded from durable polypropylene, engineered specifically for mushroom growing. They support up to 200 pounds on top, stack with built-in anti-slide notches, and ship complete with monotub filter disks, incubation plugs, and a custom-fit liner.

Available in three sizes — 28Q small, 44Q medium, and 66Q large — plus multi-packs and wholesale lots.

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Monotub Fruiting Chamber FAQ

What size monotub should I start with?

The 28Q small is ideal for a first grow or limited space; the 44Q medium is the most popular all-around size; the 66Q large is for maximum yield per grow. All three ship with filter disks, incubation plugs and a fitted liner.

Do I need to drill air holes?

No. Every tub is custom-molded with air holes already in the correct positions and ships with filter disks applied, so you can spawn and fruit right out of the box — no drilling or measuring.

What do I need besides the tub?

Colonized grain spawn and bulk substrate to fill it. For everything in one box, see monotub grow kits; to restock consumables later, see filter disks & liners.

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