1" Adhesive Monotub PTFE Membrane Disc Filters

12 filters (1 sheet)
$7.99
Quantity

discount-eligible

discount-eligible-no-buckets

all

discount-eligible-manual-with-exclusions

grow-bags-filters

monotub-supplies

mushroom-grow-chambers

grow-chambers

In Stock. Ships in 2-5 business days.

Trusted by 350K+ Growers

Trusted by 350K+ Growers

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Free Shipping over $199

Reliable air exchange is essential for a healthy monotub. These 1" Adhesive Monotub PTFE Membrane Disc Filters provide a simple, low-profile way to introduce fresh air while helping maintain the humid environment your substrate and mycelium need.

Each ultra-thin filter features a strong adhesive backing for quick installation over a properly sized monotub hole. Once applied, the breathable PTFE membrane supports passive gas exchange while helping limit unwanted exposure to airborne contaminants.

Designed for monotubs and other mushroom grow chambers, these filters are useful during colonization and fruiting. Their discreet profile keeps your setup tidy without bulky hardware, tubing, or complicated modifications.

PTFE, or polytetrafluoroethylene, is a durable membrane material valued in cultivation for its breathability and filtration properties. The high-airflow design helps your growing environment receive fresh air without rapidly losing humidity.

For best results, apply the filter to a clean, dry surface and press firmly around the adhesive perimeter. Position filters according to your monotub design and growing method, keeping the surrounding area free of dust and excess moisture during installation.

Whether refining a first monotub or maintaining a more advanced indoor growing system, these adhesive membrane filters offer an efficient, practical upgrade for controlled mushroom cultivation.

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.

Reviews

  • 5 stars: 19 (95%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (5%)
J
Jason

Just the ones i need!!!

J
Justin

Once again great service from northspore they pushed the filters out the door there customer service is excellent had a response first thing in the morning filters arrived in excellent condition I'll be using them tonight or tomorrow morning

R
Ryan K Ruff
Breathers

So far no problems whatsoever

P
Paul Lavigne

Worked great good buy

We are so glad the filters worked out! Our team is here if you need anything!

F
Francisco

Great filters. Does the job.

A
Adison Farber
Disc filters

This product worked well, easy to use and even easier to remove when need to replace.

Thanks for sharing, Adison! Please reach out if you ever need anything.

m
mike Dotson

Just what I needed

J
Jason Keene
Good stuff

Stuff works great

A
Andrew Chandler
Great Company

Great company with great customer service. I've had great success with their products and will only purchase from North Spore!

Thanks so much, Andrew! We really appreciate your support.

J
Jason Keene
Works good

Great stuff

J
Jonathan Jankowski
Perfect fit

They work and stick on great. What else could you ask for?

Thanks for sharing, Jonathan! We really appreciate your support.

J
John
Works great with boomr bin!

I find these are a hassle free way to cover the holes on the boomr bin. Thank you for a easy to use product!

Thanks for the great review, John. We’re so glad everything is working out for you.

T
Taylor

Works like a charm.

Thanks for sharing, Taylor! If you need help with anything, please reach out.

E
Ernest York Jr
Filters

Have not used yet. They are different from the recycled filters but should work just fine.

H
Hannah K
Filter stickers

Good filter stickers! Sturdy and easy to apply. Reserved one for particle pass testing and it performs very well.

Thanks for sharing, Hannah! We're so glad to hear they're working well for you.

D
Don Salisbury
Easy to use

These are easy to use and store ,

Thanks, Don! We really appreciate your support.

D
Don Salisbury
Work great

These seem to do so much better then 3m tape for filtration, have a tub blowing up with them on it

Thanks for sharing, Don! We're so glad everything is working out for you.

J
Jacob

arrived on time and as described! can't wait to start usin em

C
Christopher

Never came so i mean don't have much choice but to give them one star I'm sure there great but gotta get 1 star since I never got them.

S
Skye Finley
Great

I accidentally ordered the wrong size but they still came in very handy