W-L-7274
Penetration
Standard UL US and Canada
F-Rating | 2 hrs. | ||
T-Rating | 0.5 hrs. | ||
Structural element | Light partition wall (acc. to U400, V400 or W400) with steel floor runner, steel studs and gypsum boards. | ||
Galvanized steel duct | Max 15-3/4 in (400 mm) by 11-3/4 in. (300 mm) galvanized steel duct |