US$ 10.99
cast metal housing with sealed indicator
rust resistance
Length 60 in Width 54 in
Number of Arc Sensors 0
Bilco® NB-50 Aluminum Roof Hatch - 30"x54" cast metal housing with sealedBilco NB 50 Aluminum Roof Hatch 30"x54" Model #: WBB692236 MPN #: NB 50 Engineered with compression spring operators to provide smooth, easy, one hand operation. Automatic hold open arm locks the cover in the open position to ensure safe egress. Overlapping cover design, full welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb ensure weathertightness and energy efficiency. Constructed with corrosion resistant