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Six Microppose adhesive filter disks for monotubs and any bulk-style fruiting chamber. Each 2.5" disk covers a vent hole up to 2.25" across with a full ring of 3M adhesive around it. Peel, press and you have the same filtered air exchange on every hole, every grow, instead of hand-stuffed polyfil.
Every hole gets the same filter media, so fresh air exchange stays consistent from tub to tub and run to run.
Water-resistant synthetic fiber won't soak up misting water and humidity the way loose polyfil wicks it.
Nothing to stuff, tape or glue. A flat disk instead of fiber hanging out of the tub wall.
Any hole up to 2.25". A 2" hole saw is the common choice and leaves a good margin for the adhesive.
Wipe around each hole with alcohol and let it dry completely. Adhesive won't grip a damp or dusty tub.
Center the disk on the hole and smooth it from the middle out so the full adhesive ring makes contact.
After harvest, peel the disk, clean it with 3% hydrogen peroxide, let it dry fully and reapply.
How many do you need? Grower's Select 44Q and 66Q tubs have 6 holes, so one pack outfits a tub. The 28Q cube has 4 holes, which leaves two spares.
Pair them withA Grower's Select monotub with pre-drilled holes (also in 28Q and 66Q), plus pre-cut liners in small, medium and large.
For a Grower's Select 44Q or 66Q, yes: those tubs have 6 holes. The 28Q cube has 4 holes, so a pack covers it with two spares. For a DIY tote, count your holes; most are drilled with four to six.
Any vent hole up to 2.25" in diameter. The disk is 2.5", which leaves an adhesive margin all the way around. A 2" hole saw is the most common size growers pair with them.
Yes. Peel the disk after the grow, clean it with 3% hydrogen peroxide and let it dry completely before reapplying. The adhesive grip softens a little each time, so press firmly onto a clean, dry surface when you put it back.
Yes, as long as the tub is clean and dry when you apply them. The media is water-resistant, so misting and high humidity won't saturate it.
Yes. They work on Martha tent panels, shotgun fruiting chambers, bulk trays, buckets and storage totes, anywhere you need filtered air exchange through a hole up to 2.25".
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