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The ASC ENGINEERED SOLUTIONS 318900883 is a 3-inch black cast iron cap designed to close off the end of a cast iron pipe in drain, waste, and vent (DWV) systems. This cap provides a secure, permanent termination point and is coated black for corrosion resistance in typical plumbing environments. Weighing 4.09 pounds, it is a heavy-duty fitting suited for residential and light commercial applications. Licensed plumbers and pipefitters install this type of cap when capping unused branch lines, completing rough-in work, or sealing off sections of cast iron drainage systems.
This fitting is used in cast iron DWV piping systems where a 3-inch pipe end requires a solid termination. It is appropriate for residential and commercial drain, waste, and vent rough-in and service work. The black coating is standard for cast iron plumbing fittings and suits both above-ground and below-grade installations where applicable code allows cast iron pipe.
Designed as an OEM-style replacement and standard service fitting for 3-inch cast iron DWV piping systems in residential and commercial plumbing applications.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off water supply and relieve system pressure before beginning any pipe work. Use appropriate joint methods for cast iron pipe, such as compression gasket or lead and oakum, depending on the existing system and local code requirements. Inspect the mating pipe end for damage or debris before seating the cap.
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