The 4-inch PVC Roof Drain with Poly Dome from Sioux Chief Manufacturing is designed for efficient water drainage on flat roofs. This durable drain features a poly dome that prevents debris from clogging the system, ensuring optimal performance. Constructed from high-quality PVC, it is resistant to corrosion and UV damage, making it suitable for various weather conditions. The drain's dimensions are engineered for compatibility with standard roofing systems, and it meets industry standards for reliability. Ideal for commercial and residential applications, this roof drain is a reliable choice for effective water management.