3 in Roof Drain with Flange

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for overflow management, this RD-300-R series roof drain features epoxy-coated cast iron construction for structural integrity. The unit includes a 2 in high external water dam to regulate drainage levels and a self-locking polyethylene dome to prevent debris blockage. Designed with a 3 in diameter and 6 in height, this drain utilizes a 2 in outlet to maintain a 4.5 GPM flow rate. It meets ASME-, UPC-, and IPC- standards, ensuring compliance with North American plumbing codes for commercial and residential roofing applications. The assembly provides a reliable solution for water runoff control, backed by a 1-year manufacturer warranty.