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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...
TX

Very sticky, very useful

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When making or using tubs or anything else that requires oxygen and carbon dioxide flow, these patches are the best.