Omni Ridge Vent, 4 ft L, Black, Lomanco, Mfr#: OR4

Internal aerodynamic curved baffles 18 sqin of netfree ventilating area per lineal foot External perpendicular Omni baffles Weatherproof underlapping joint Four drain holes per foot per side External venturi baffle Preformed to 312 pitch 10 supported nail holes Alignment tabs External water shield Slot width guide lines Adjusts from 212 to 1612 roof pitches Copolymer materials Limited lifetime warranty, the engineered material assures it will last as long as your shingles No connectors required Molded fanfold end plugs, no accessories or alterations needed Miami Dade County Approved 11060203 95 cfm at wind velocity of 3 mph, 235 cfm at wind velocity of 8 mph, 430 cfm at wind velocity of 15 mph, OR4 with nails and OR4 with screen available