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Mycologysimplified

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Stacked refill kit components against stylized cosmic background: milo grain bag on top of two CVG substrate blocks.

Mycologysimplified

4.5 (123)

Extra Large Monotub Refill Kit – Sterile Grain Spawn & CVG Substrate

Name: Mycologysimplified Extra Large Monotub Refill Kit – Sterile Grain Spawn & CVG Substrate - Extra Large Monotub Refill Kit – Sterile Grain Spawn & CVG Substrate
Brand: Mycologysimplified
SKU: 46213279351006
Price: 39.99 USD
Availability: InStock
Rating: 5 (1 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$39.99

Quantity

Color

Black

Quantity

Extra Large Monotub Refill Kit – Built for Bigger Runs 5 lb Sterile Milo + 10 lb CVG Substrate — Vacuum-Sealed & Ready to Run
Restock Fast. Keep It Clean. The Extra Large Monotub Refill Kit makes it easy to reload your setup with ...

Reviews

5.0

2 ratings

5 stars for the grain. Inoculated 3 days ago, already seeing growth. Haven't been able to try to substrate just yet. Few more weeks for that. Package was nice and secure. Everything nice and vacuum sealed in separate bags is awesome too!

Joshua · May 27, 2026