Steel Duct

Penetration Item (Size and Type)

Sleeve
O = Optional
R = Required

Point Contact

Assembly Thickness

F Rating

Nelson Product

UL System

Nelson FS Drawing

4" diameter" 30 GA    X 6 2 LBS3 W-J-7063 FS-0587
6" diameter" 28 GA    X 6 2 ES1399 W-J-7051 FS-0471
10" diameter" 28 GA      5 2 LBS3 C-AJ-7092 FS-0543
24" diameter, 22 GA    X 3 ES1399 C-AJ-7093 FS-0513