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The MUELLER STREAMLINE K024700 is a 2-inch nominal DWV (drain, waste, and vent) adapter fitting made from PVC. It connects hub-end pipe to female NPT threaded fittings or threaded pipe ends, allowing transitions between smooth-socket and threaded DWV connections in a single fitting. Domestically manufactured, this adapter is suited for residential and light commercial drain, waste, and vent systems where a reliable hub-to-threaded-female transition is needed. Plumbers and pipefitters are the primary installers of this type of fitting.
This adapter is used in PVC DWV piping systems at 2-inch nominal pipe size. It is appropriate for residential drain lines, branch connections, and vent stack transitions where a hub socket inlet meets a female NPT threaded outlet. The hub x FNPT end style allows the fitting to be solvent-cemented on the hub side and threaded on the FNPT side, making it a practical transition point in mixed-connection drain and vent configurations.
Designed as an OEM-style replacement or new-installation fitting for 2-inch nominal PVC DWV piping systems using hub and female NPT threaded connections.
Installation is typically performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off and drain the affected drain line before cutting into any existing piping. The hub end requires compatible PVC solvent cement and primer applied per the cement manufacturer's instructions. The FNPT end accepts a male-threaded pipe or fitting — apply appropriate thread sealant tape or compound to the male threads before assembly.
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