Bilco® NB-50 Aluminum Roof Hatch - 30"x54" 8 Waterproof lids (2 pieces

8 Waterproof lids (2 pieces plus foam insert and rubber gasket)

or loose rust

Ink Tank Refill

Integral Gutter along length

Bilco® NB-50 Aluminum Roof Hatch - 30"x54" 8 Waterproof lids (2 piecesBilco 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