Cor-A-Vent Inc., Mishawaka, Ind., offers the S-400 strip vent, adaptable to many different applications. Used in soffits and eaves, it is nearly invisible, yet provides maximum net free ventilation area. The vent comes in 4-foot lengths, so it’s easy to handle and install. Because the slender, 1-inch-wide vent is easily concealed, it is well suited to roofs without overhangs. Yet it still delivers a full 9 square inches of net free ventilation area. The product allows you to ventilate eaves while retaining a high degree of architectural flexibility.