Mueller Streamline 5909 Pvc Dwv Flush Bushing 4x3 in

Product Description

The MUELLER STREAMLINE 5909 is a 4-inch by 3-inch PVC flush bushing designed for drain, waste, and vent (DWV) piping systems. It connects a 4-inch spigot to a 3-inch hub, allowing plumbers to transition between pipe sizes within DWV runs. The fitting is manufactured from PVC conforming to ASTM D2665, F1498, D331, and D1784 material specifications. Smooth interior walls minimize scaling and support consistent flow. The flush bushing profile keeps the fitting seated flush within the hub, maintaining a clean, low-profile connection point. Licensed plumbers and pipefitters are the primary installers for this type of fitting.

This bushing is suited for residential and light commercial DWV applications where a spigot-to-hub reduction is required. It performs well in environments with exposure to common drain chemicals and corrosive waste streams, making it appropriate for both standard sanitary drain lines and chemical-resistant piping layouts. The fitting meets NSF 14 and UPC standards, supporting use in jurisdictions that require certified DWV components. Where a 4-inch main line must transition down to a 3-inch branch or stub-out, this bushing provides a direct, code-compliant solution.

Key Features

• Flush bushing profile seats cleanly within the hub for a low-profile, secure fit
• 4-inch spigot to 3-inch hub end connection for in-line pipe size reduction
• PVC construction resists corrosion and common drain chemicals
• Smooth interior walls reduce scaling and support unobstructed flow
• Meets NSF 14 and UPC certification standards for DWV applications
• Manufactured to ASTM D2665, F1498, D331, and D1784 specifications for dimensional consistency

Compatibility

Designed as an OEM-style replacement and new-installation fitting for PVC DWV piping systems requiring a 4-inch to 3-inch spigot-to-hub flush bushing reduction, in applications conforming to NSF 14 and UPC requirements.

Installation Notes

Installation is performed by a licensed plumber following applicable local plumbing codes and IPC or UPC standards. Solvent-cement the spigot end into the receiving hub using a PVC-rated primer and cement appropriate for DWV service. Ensure both mating surfaces are clean, dry, and free of debris before applying cement. Allow full cure time per the cement manufacturer's instructions before restoring flow to the line.

Technical Specifications

• Fitting Type: Flush Bushing
• Size: 4 inches x 3 inches
• End Connection: Spigot x Hub
• Material: PVC
• Material Specification: ASTM D2665, F1498, D331, D1784
• Applicable Standard: NSF 14, UPC
• Application: DWV, Chemical, Corrosion

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 5909