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Monotub Adhesive Filter Disks (20-Pack) Polyfil filter disks, air exchange, monotubs, indoor greenhouses, Martha Tents, humidity, flow rate, density, 3M adhesive back, synthetic fiber, water-resistant, Hydrogen Peroxide, re-used, circular, polypropylene, ventilation holes, lid, contaminants, bacteria, airborne particles, micron rating, 0.2 microns, adequate air flow, sterile,

Monotub Adhesive Filter Disks (20-Pack) (FD20)

5.00 stars, based on 30 reviews
(Save 50% Halloween Sale!)Introducing our new Polyfil filter disks, available in a convenient bulk pack of 20, expertly designed to take the guesswork out of air exchange in your mushroom cultivation setup. Crafted from durable synthetic fibers...

Filter discs

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Quality product. Arrived quickly!

Filter discs

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Pros:
  • As advertised
Cons:
  • Little difficult to peel off
Worked well for my homemade tub

Texas

Filter Discs

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Working like a champ and arrived fast!

Oregon

Filter discs

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Pros:
  • Clean
  • Price
Cons:
Showed up with manure casing as well and I was well packed.

Filter patches

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Pros:
  • Easy to use
  • Price
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These things are also perfect. They fit my tub and allow FAE. Incredible product.