Duraflo 60PRO117BL Roof Vent, 18.18 in OAW, 117 sq-in Net Free Ventilating Area, Polypropylene, Black Safety Equipment Prepares the surface to allow

Prepares the surface to allow you to plaster directly to concrete over electric radiant heat cable and to bond cement mortar beds to smooth concrete for installation of rigid foam insulation

It is also suitable for both interior and exterior use

Cutting edge hardness (approx

The 1/4 in hex shank has an optimized SHOCKZONE body providing you with the industry’s most durable shank

Three-piece white polystyrene wall with 3 convenient shelves

Duraflo 60PRO117BL Roof Vent, 18.18 in OAW, 117 sq-in Net Free Ventilating Area, Polypropylene, Black Safety Equipment Prepares the surface to allowThe PROTurbo combines the field tested benefits of the patented WeatherPRO internal baffle system with multi stage, high volume, airflow for superior attic ventilation.