2" Adhesive Monotub 100% Cotton Disc Filters

6 filters (1 sheet)
$5.99
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In Stock. Ships in 2-5 business days.

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Trusted by 350K+ Growers

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Achieving optimal environmental control is paramount for successful indoor mushroom cultivation. Proper gas exchange, balanced with consistent humidity, directly influences mycelial colonization and healthy fruiting.

North Spore's 2" Adhesive Monotub 100% Cotton Disc Filters are engineered to facilitate this crucial balance. These filters provide a reliable solution for maintaining pristine conditions within your cultivation chambers and grow bags.

Designed for high airflow, these disc filters allow your substrate and mycelium to receive vital fresh air. Concurrently, they are highly effective at retaining the elevated humidity levels essential for robust fungal development.

Each filter is meticulously manufactured from 100% pure cotton, ensuring a natural and effective barrier. The cotton material allows for consistent gas exchange without compromising the microclimate of your monotub.

A strong 3M adhesive backing secures the filters firmly to your growing vessel. This robust adhesion creates a tight seal, preventing unwanted air ingress or egress, thereby minimizing contamination risks.

Implementing these adhesive disc filters supports vigorous mycelial growth by providing the necessary oxygen while mitigating airborne contaminants. This precision in environmental management contributes to more predictable and prolific harvests.

Easily apply these 2-inch diameter filters to pre-drilled holes on your monotubs or directly onto your grow bags for enhanced air exchange. They are a fundamental component for any serious indoor grower.

Equip your cultivation setup with these specialized filters to ensure your mushroom cultures thrive in a controlled and protected environment, reflecting North Spore's commitment to quality supplies for mycologists and growers.

Frequently Asked Questions

We recommend absolute beginners start with our Spray & Grow Kits, which make growing mushrooms at home super easy.

We want you to have the best possible experience with every North Spore product and guarantee free replacements within 30 days of receipt for any damaged, contaminated, or unusable product.

Absolutely! Mushroom cultivation is a great activity to do with the whole family, whether you'd like to grow indoors or outdoors. If you're new to mushrooms, we recommend starting with a Spray & Grow Kit or a Plant & Grow Kit – both make it easy to grow fresh, organic mushrooms at home.

We are vertically integrated — from culture work all the way to spawn and substrate production — ensuring a quality end product. And our staff mycologists keep up to date on all best practices in our field. Additionally, we have a dedicated QAQC team that tests every batch of grain and substrate before it’s inoculated.

Cluster of brown-capped mushrooms with long, light-colored stems against a white background.

Your Trusted Source for Premium Mushroom Growing Supplies

Whether you’re growing mushrooms at home, in your garden, or at a commercial scale, we offer everything you need to cultivate success. We start with the highest-quality OMRI-listed ingredients, mix them in our state-of-the-art facility, and inoculate them in our custom-built lab, so you can rest easy knowing your product will yield the best results.

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