The GAF Master Flow Resin Slant Back Roof Louver is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. The resin slant back roof louver is an excellent choice against weather infiltration， especially in steep-slope applications. Each vent offers a full 65 sq. in. of net free ventilating area (NFA).
High-impact resin construction
Black finish
Slant back louver design
65 sq. in. net free ventilating area
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