Nelson :: Application
 
 
 
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Gypsum Walls HVAC Duct
  Penetrating Item
(Size and Type)
Sleeve
O - Opt
R - Req'd
Point Contact Assembly Thickness F Rating Nelson Product UL System FS Detail
  20" x 20" 24 GA     X   3-3/4, 5   1, 2   FSC3   W-L-7083  FS0400R1
  24" x 30" 24 GA, 1½ fiberglass         3-3/4, 5   1, 2   ES1399   W-L-7085  FS0402R0
  18" x 67" 24 GA     X   3-3/4, 5   1, 2   ES1399   W-L-7084  FS0401R1
  12" x 12", 24 GA         3 3/4, 5   1 or 2   LBS3   W-L-7105  FS0609R0
  40" x 20", 24 GA         3 3/4, 5   1 or 2   LBS3   W-L-7105  FS0610R0
   
Non Toxic, Non Hazardous
Not Harmful to Plants or Animals,
[ No PBDes - Polybrominated Diphenyl ethers]