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Monotub Adhesive Filter Disks (6-Pack) Polyfil filter disks, 6-Pack, water-resistant synthetic fiber, 3M adhesive back, humidity maintenance, proper air exchange, monotubs, indoor greenhouses,  easy installation, holes up to 2.25" diameter, reusable, cleaning with Hydrogen Peroxide, circular piece of material, polypropylene, filter air, monotub cultivation, bacteria, airborne particles, proper air exchange, micron rating, 0.2 microns, adequate air flow, sterile,

Monotub Adhesive Filter Disks (6-Pack) (FD4)

5.00 stars, based on 41 reviews
A monotub filter disk is a circular piece of material, typically made of polypropylene, that is used to filter the air entering a monotub used in the cultivation of mushrooms.The filter disk is placed over the ventilation holes on the top of the...
Arizona

Fast and reliable

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Pros:
  • Quality
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  • Need larger selections
Their site is easy to navigate, shipping was fast and the right product arrived.

Filter discs

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I received my monotub adhesive filter discs and mushroom drying kit and 3other items very fast I was surprised by the size of the filter discs I thought they would be smaller I bought 4 five. Grain jars from you I. Innoculated all four jars with a spore syringe in may and exactly 30 days later I took the fully colonized cakes out of the jars and I. Put two cakes into a one gallon ziplock bag that I swabbed with alcohol inside and out all the cakes broke up very easy I did all the cakes that way then I mixed them with with a 5lb bag of midwest's casing material I put four filter discs on my 27 quart. Sterilite plastic mono tub container i got from big box store it's the perfect size for 4 jars and casing six days after mixing cakes and casing material mushroom mycelium has grown through half of the surface of the casing layer very happy with midwests products

Bellingham, WA

FILTER DISK

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What a difference, should have gotten these weeks ago. They are nice and large, giving my mushies more air. Filtered air, and they stuck on very easily. What a class act I have now.

In the wind.

Filter Disks

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Bought a 6 pack a year ago or so, I just peal them off the tub afterward and clean them and the tub for the next round. I just tore the adhesive off of one accidentally.

Lake Stevens, WA

Filter patch stickers are a game changer!

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Pros:
  • Price
  • ease of application.
Cons:
No more poly fill to deal with. These stick on filters are awesome. So many uses beyond monotubs.