Master Flow® Roof Louver RV50 ‑ Metal Round Throat

Ideal for attic exhaust ventilation and other applications; 50 in² of NFA . Helps exhaust heat and moisture from the attic, kitchen or bathroom, to protect from premature deterioration, decrease interior heat, and limit the growth of harmful mold and mildew. Available in aluminum or galvanized construction and four popular colors, this vent provides 50 sq. in. (32,258 m2) of NFA.