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30 Mesh 304 Stainless Steel Wire Mesh Roll, 0.15mm Wire Diameter, 11.8"x39.4" Rust Proof Flexible Metal Screen, Easy to Cut for Vent Covers, Window Screens, Filters, Garden DIY Projects

30 Mesh 304 Stainless Steel Wire Mesh Roll, 0.15mm Wire Diameter, 11.8"x39.4" Rust Proof Flexible Metal Screen, Easy to Cut for Vent Covers, Window Screens, Filters, Garden DIY Projects
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comments:

keithhe posted on r/isopods32w

I use a super fine mesh (30 micron) stainless steel mesh on vent holes. Not even fungus gnats get through that. https://a.co/d/61MejDT