The patented PYTHON 65 Slant Back Vent can be used as an intake or exhaust vent. Its innovative design features a lower profile than most static vents on the market, making it less visible on the roof for greater curb appeal. Its durable no-break polypropylene construction also eliminates unsightly dents and rust, the PYTHON 65 Slant Back Vent features a high Net Free Venting Area of 65 sq. in., requiring fewer roof penetrations, suitable for any roof pitch from 2/12 in. x 16/12 in., its 4 side crickets shed water around the throat of the vent, making it virtually leak proof, at the bottom of the throat is a high-wind deflector which prevents wind-driven rain from entering the vent, arrow-locking mechanisms prevent cap blow offs, the PYTHON 65 Slant Back Vent is available in 3 colors: black, brown and weatherwood. Material: Plastic.