4 inch x 3 inch PVC DWV Toilet Bend Reducing Elbow Plastic x Plastic

4 inch x 3 inch PVC Closet Bend (Hub x Hub) – For Code-Compliant Toilet Waste Transitions

The 4 inch x 3 inch PVC closet bend is designed to facilitate the transition from a 4-inch waste stack to a 3-inch toilet flange, conforming to standard drainage configurations in residential and light commercial plumbing systems. Manufactured from rigid PVC and formed with a long sweep 90° elbow, this fitting provides optimal flow characteristics while maintaining code-compliant slope and cleanout access where required.

This closet bend is injection molded with integral hubs on both ends to accept standard SDR-35 or Schedule 40 PVC pipe. Its durable construction and dimensional accuracy make it a dependable component in both new construction and retrofit installations where consistent performance and ease of fit-up are required.

Professional-Grade Performance

• ✅ Standard Configuration: Reduces a 4-inch soil stack to a 3-inch flange outlet, aligning with UPC/IPC toilet rough-in codes.
• ✅ Schedule 40 PVC: Suitable for non-pressurized DWV (Drain-Waste-Vent) applications with high resistance to corrosive wastewater environments.
• ✅ One-Piece Molded Body: No joints to crack or separate, improving long-term reliability and reducing the risk of leaks.
• ✅ Consistent Wall Thickness: Supports structural integrity for slab-on-grade or subfloor applications.

Technical Specifications

• Material: PVC (Polyvinyl Chloride), Type I Grade I per ASTM D1784
• Nominal Size: 4 inch inlet x 3 inch outlet
• Ends: Hub (Slip Socket) x Hub
• Standards: Conforms to ASTM D2665 and CSA B181.2 for DWV applications

Installation Overview

Intended for solvent-weld installation using ASTM-approved primer and cement. Ensure surfaces are free of debris and dry-fit for alignment prior to bonding. The fitting must be installed in accordance with local plumbing code requirements for venting and slope, and may require supplemental strapping or bedding depending on subgrade conditions.

Common Applications

• Toilet connections in residential and multi-unit structures
• New construction slab installations
• Renovation and remodels of existing DWV systems

Note:

PVC closet bends are non-metallic and should not be used for pressurized systems or exposed to direct UV light without proper shielding. For systems subject to extreme temperatures or mechanical impact, consult engineer specifications for alternative materials.

Designed for compatibility, strength, and performance, the 4 inch x 3 inch PVC closet bend is a standard component on job sites requiring efficient drainage solutions and consistent code compliance.