Our selection of Gable Vent Accessories includes trim for all our gable vents. Add architectural detail to your Round Gable Vents with our 4F Round Gable Vent Trim. It is available in several sizes for a perfect fit. Like all our gable vents, our round gable vent trim is crafted in urethane, one of our most popular materials. Durable, lightweight and affordable, our urethane trim is an excellent alternative to wood. It has the feel of pine, but the resists warping, rotting, cracking and insects often associated with wood products. Our urethane trim is delivered to you ready for painting, installs easily and requires little maintenance.