Duraflo 6065BL Roof Vent, 17.252 in OAW, 61 sq-in Net Free Ventilating Area, Polypropylene, Black

Polypropylene material. Ideal for steep pitched roofs. Low profile and a stair step screen to provide more airflow in a smaller vent. 17-1/2 in x 18-1/2 in flashing with 4.3 in H. 61 sq-in of net-free area. UV resistant polypropylene. For steep pitched roofs up to 12/12 Features: - Weather protection for steep pitched roofs - Prevents bird from nesting - Won't crush, dent or peel - Cold impact-resistant down to -40 deg C - UV-resistant polypropylene - More airflow through stair step screen