6qt Shoebox Refill Kit – Sterile Grain & Substrate Combo

Name: Mycologysimplified 6qt Shoebox Refill Kit – Sterile Grain & Substrate Combo - 6qt Shoebox Refill Kit – Sterile Grain & Substrate Combo
Brand: Mycologysimplified
SKU: 44212201226462
Price: 15.99 USD
Availability: InStock
Rating: 5 (20 reviews)

4.5 (1,234)

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20% off first order

$15.99$19.99

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Quantity

Color

Black

Quantity

Description

6qt Shoebox Refill Kit – Compact, Clean, and Ready to Run
2 lb Sterile Grain + 3 lb Substrate — Sized for 6qt Shoebox Tubs
Small Tub. Serious Performance. The 6qt Shoebox Refill Kit is built for compact grows that still deliver strong results. Clean, vacuum-sealed, and properly balanced for 6qt shoebox tubs — no guessw...

Reviews

5.0

35 ratings

My go-to refill kit. Packaging is high quality and shipping is very quick. The corn is GREAT!!!. And the not so simple substrate mix is wonderful stuff.

Dirk · August 17, 2026

mush love

PsiloCyperPunk · 11 days ago

Arrived on time and the product was double sealed to keep sterile, I will be ordering again as the quality of the substrate and grain was top notch.

Yellow · May 15, 2026

Delivery & Returns

Mycologysimplified

4.9 (1.5K)

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