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The MUELLER STREAMLINE 05878 is a 3-inch Schedule 40 PVC DWV 90-degree elbow with a hub-by-hub end configuration. It is designed for drain, waste, and vent piping systems in residential and light commercial construction. The smooth, consistent interior walls promote full flow and reduce buildup from scaling and corrosion. Uniform interior and exterior wall thickness improves joint strength and long-term reliability. This fitting is manufactured in the USA and is a standard choice for licensed plumbers roughing in DWV systems.
This elbow is used in gravity-flow drain, waste, and vent applications where a 90-degree directional change is required. Typical installations include stack connections, branch drain lines, and horizontal-to-vertical transitions in residential plumbing and light commercial DWV systems. The hub-by-hub socket ends accept standard Schedule 40 PVC pipe with solvent cement joints.
Designed as an OEM-style replacement and new-installation fitting for Schedule 40 PVC DWV piping systems using 3-inch diameter pipe with solvent cement hub connections.
Installation is performed by licensed plumbers in accordance with the International Plumbing Code (IPC) and applicable local codes. Before beginning work, shut off any water supply and ensure the drain line is empty and dry. Use an approved PVC primer and solvent cement rated for DWV service; follow manufacturer cure times before pressurizing or flowing the system. Do not use this fitting on pressure piping systems or with pipe schedules other than Schedule 40 PVC DWV.
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