L L Building Products SSB960A "Gaf/Master Flow" Slant Back Roof Louver, Mill Finish Winter_Items Does not penetrate beyond the

Does not penetrate beyond the surface of hoof wall

larvae and adults

Fits most 3/4" to 1-1/4" thick doors

Length: 78"

Dries to non-oily finish that is water and alcohol resistant

L L Building Products SSB960A "Gaf/Master Flow" Slant Back Roof Louver, Mill Finish Winter_Items Does not penetrate beyond the"LL BUILDING PRODUCTS" GAF MASTER FLOW ROOF VENT Mill finish Slant back louver Aluminum material resists rust. Fully enclosed hood to help prevent rodent insect infiltration and leaf pine needle clogging. Embossed finish hides scratches and resists wear. 12 percent larger flashing with pre drilled nail holes makes installation easier, helps prevent leaks. 9 7 8" opening; 18" x 201 2 flashing dimension. 60 sq. in. of net free ventilating area per vent.