The Jones Stephens R18008 is a 4-inch ABS roof drain featuring a cast iron dome for superior durability and performance. This roof drain is designed to efficiently manage water runoff, preventing pooling and potential damage to roofing systems. The ABS construction is lightweight yet strong, ensuring longevity in various weather conditions. The cast iron dome adds an extra layer of protection while enhancing the drain's aesthetic appeal. Compliant with industry standards, this roof drain is ideal for commercial and residential applications.