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The ASC ENGINEERED SOLUTIONS 300018504 is a 6-inch by 5-inch black cast iron reducing 90-degree elbow designed for use in drain, waste, and vent (DWV) piping systems. This fitting provides a 90-degree directional change while simultaneously reducing pipe size from 6 inches to 5 inches, eliminating the need for a separate reducer and elbow in tight spaces. Weighing 26.66 pounds, the fitting is domestically produced and finished with a black coating. It is typically installed by licensed plumbers working on commercial or industrial piping systems where cast iron is specified for its durability and noise-dampening characteristics.
This reducing elbow is suited for gravity-flow drain and vent applications in commercial buildings, multi-family residential structures, and industrial facilities. Cast iron fittings of this type are commonly used in above-ground and below-ground DWV systems where long-term performance and resistance to mechanical damage are priorities. The black coating provides corrosion resistance appropriate for standard indoor plumbing environments.
Designed as an OEM-style replacement or new-installation fitting for 6-inch by 5-inch cast iron DWV piping systems in commercial and industrial plumbing applications.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). The system should be depressurized and drained before removing any existing fittings. Cast iron fittings of this size typically require appropriate pipe supports to manage the substantial weight of the assembly. Standard cast iron joining methods such as hub-and-spigot with lead and oakum, no-hub couplings, or mechanical joint connections should be used as specified by the engineer of record or applicable code.
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