Mueller Streamline 6144 Pvc Dwv Flush Bushing 6x4 in

Product Description

The MUELLER STREAMLINE 6144 is a PVC DWV flush bushing designed to reduce a 6-inch hub to a 4-inch spigot connection in drain, waste, and vent piping systems. This fitting is manufactured from rigid PVC to ASTM D2665, F1498, D331, and D1784 material specifications, delivering strong resistance to chemicals and corrosion. Smooth interior walls minimize scaling and promote unrestricted flow. A tube stop is included to ensure consistent insertion depth and dimensional integrity during assembly. Licensed plumbers and pipefitters install this fitting in new construction and retrofit DWV systems.

This bushing is suited for residential and light commercial drain, waste, and vent applications where a reduction from a 6-inch line to a 4-inch branch or fixture connection is required. The spigot-by-hub end configuration allows the 6-inch spigot end to insert into an existing hub fitting while accepting a 4-inch spigot on the hub end. It is also appropriate for chemical-resistance and corrosion-resistance applications where PVC is the specified material. The fitting meets NSF 14 and UPC standards, making it acceptable for use in jurisdictions that require listed DWV products.

Key Features

• 6-inch x 4-inch reduction in a single flush bushing fitting
• Spigot x hub end connection for direct integration into PVC DWV piping
• Rigid PVC construction resists chemicals and corrosion
• Smooth interior walls reduce scaling and support free flow
• Tube stop ensures consistent insertion depth and a secure fit
• Meets NSF 14 and UPC standards for listed DWV applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for PVC DWV piping systems requiring a 6-inch to 4-inch bushing reduction with a spigot x hub configuration.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code and applicable local codes. Shut off water supply and verify the line is depressurized before beginning work. Solvent-cement the spigot end into the receiving hub using a PVC primer and cement rated for DWV service, following the cement manufacturer's cure time before pressurizing or introducing flow. Do not force misaligned joints or use heat to reshape the fitting.

Technical Specifications

• Fitting Type: Flush Bushing
• End Connection: Spigot x Hub
• Size: 6 inches x 4 inches
• Material: PVC
• Material Specification: ASTM D2665 / F1498 / D331 / D1784
• Application: DWV, Chemical Resistance, Corrosion Resistance
• Tube Stop: Yes
• Applicable Standard: NSF 14, UPC

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 6144