Professional Filter Patch Grow Bags
Unicorn mushroom grow bags are durable, autoclavable polypropylene bags designed for sterile mushroom production. Their integrated filter patches allow gas exchange while helping reduce contaminants, making them ideal for grain spawn, all-in-one bags, substrate blocks, and fruiting applications.
Learn About Sizes & Filters →-
XLS-A HORIZON UnicornBag - Mushroom Grow Bags - 0.5-Micron Gas Exchange Filter Patch
Precio habitual A partir de $1.75Precio habitual -
XLS-B HORIZON UnicornBag - Mushroom Grow Bags - 5 -Micron Gas Exchange Filter Patch
Precio habitual A partir de $1.75Precio habitual -
Bolso Unicornio XLS-A
Precio habitual A partir de $1.75Precio habitual -
XLS-B Unicorn Bags - Mushroom Grow Bags - 5-Micron Gas Exchange Filter Patch
Precio habitual A partir de $1.60Precio habitual -
Bolsa Unicornio 4T
Precio habitual A partir de $1.50Precio habitual -
Bolsa Unicornio 10T
Precio habitual A partir de $1.50Precio habitual -
Bolsa Unicornio 3T
Precio habitual A partir de $1.50Precio habitual -
Bolsa Unicornio 14A
Precio habitual A partir de $1.40Precio habitual
Choosing the Right Unicorn Bag
Unicorn Bags are professional polypropylene filter patch bags used for grain, substrate, fruiting blocks, and all-in-one style workflows. The biggest differences are bag size, filter rating, filter surface area, and how much gas exchange your process needs. Below you'll find the Unicorn Bags we currently carry along with their typical fill weights and recommended applications.
T Filter · 0.2µm
Best when filtration and protection are the priority. Commonly used for grain spawn and cleaner, slower gas exchange workflows.
A Filter · 0.5µm
A great all-around option with a solid balance of protection and airflow. Commonly used for substrate, blocks, and general mushroom work.
B Filter · 5.0µm
Highest airflow option with less filtration. Often used when extra gas exchange is needed for larger blocks or fruiting applications.
Bag Sizes & Typical Fill Weights
4T Unicorn Bag
Typical Fill Weight: 1–2 lb. Ideal for smaller spawn projects and testing.
10T Unicorn Bag
Typical Fill Weight: 3–4 lb. One of the most popular sizes for grain spawn production.
3T Unicorn Bag
Typical Fill Weight: 5–7 lb. Excellent for larger grain bags and commercial workflows.
14A Unicorn Bag
Typical Fill Weight: 5–7 lb. A versatile all-around bag commonly used for substrate and all-in-one projects.
XLS-A Unicorn Bag
Typical Fill Weight: 10–15 lb. Great for larger substrate blocks and bulk production.
XLS-B Unicorn Bag
Typical Fill Weight: 10–15 lb. Designed for applications requiring increased airflow.
XLS-A Horizon
Typical Fill Weight: 10–15 lb. Features an oversized Horizon filter patch for enhanced gas exchange.
XLS-B Horizon
Typical Fill Weight: 10–15 lb. Maximum airflow option with Unicorn's larger Horizon filter design.
Not Sure Which One to Pick?
For grain, start with a T filter. For most substrate or general-purpose work, an A filter is usually the safest all-around choice. If you need more airflow, especially in larger bags, look at the B filter or Horizon filter options.
Smaller micron ratings generally provide more filtration, while larger micron ratings allow more airflow. Filter surface area also matters, which is why Horizon filter bags can move more air even when the micron rating is similar.
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