HVAC Duct

Penetration Item (Size and Type)

Sleeve
O = Optional
R = Required

Point Contact

Assembly Thickness

F Rating

Nelson Product

UL System

Nelson FS Drawing

10” X 30", 24 GA     3 ES1399 C-AJ-7079 FS-0461
12” X 12", 24 GA      5 2 LBS3 W-J-7061 FS-0585
12” X 24", 24 GA    X 2 ES1399 C-AJ-7077 FS-0459
12” X 24", 28 GA      6 2 FSP C-AJ-7010 FS-0128
12” X 24", 24 GA      LBS3 C-AJ-7091 FS-0542
18” X 67” 24 GA    X 6 2 ES1399 W-J-7048 FS-0395
20” X 36" OVAL, 24 GA    X 5 2 ES1399 C-AJ-7078 FS-0460
20” X 20” 24 GA    X 6 2 FSC3 W-J-7047 FS-0394
24” X 30" 24 GA, 1½ fiberglass      6 2 ES1399 W-J-7049 FS-0396
40” X 20", 24 GA      6 2 LBS3 W-J-7062 FS-0586