The following selection highlights the best double fixture fittings made from PVC, designed to streamline drainage, waste, and vent configurations. Each product below is chosen for compatibility with typical 2″ to 4″ PVC pipe systems, corrosion resistance, and installation versatility. Use this guide to compare options for residential or light commercial plumbing projects.
| Product | Brand | Size Range | Key Benefit |
|---|---|---|---|
| NIBCO Fig No C4835 | NIBCO | 2 in. | DWV double sanitary tee with solvent weld |
| Pushglossy Double Wye | Pushglossy | 2 in. / 2 in. | 45° branch design for smoother flow |
| NIBCO 4834 | NIBCO | 1.5 in. | Double Wye for compact layouts |
| Spears P500 Series | Spears Manufacturing | 2 in. | Wye with hub ends for easy connections |
| Frienda 4 Inch Double Sanitary Tee | Frienda | 4 in. | Four-way flow control in large-diameter lines |
Below are five carefully selected PVC double fittings that address common residential and light commercial needs, focusing on durable construction, ease of installation, and broad compatibility with standard solvent-weld connections.
NIBCO Fig No C4835 PVC Double Sanitary Tee
Overview: This 2-inch PVC DWV double sanitary tee provides a solvent-weld connection for quick, secure joints in drainage and vent systems. It’s designed for sanitary drainage with a hub and socket configuration that fits standard PVC piping. Users should avoid testing with compressed air or gases and monitor service temperatures to stay within recommended limits.
Attributes: Maximum service temperature is 140°F. It adheres to ASTM D2665 and D3311 standards, ensuring reliable performance with compatible PVC piping. The design supports branching in drainage lines, reducing turbulence when integrated into well-planned layouts. It’s ideal where a vertical-to-horizontal diversion is needed in a compact space.
Pushglossy Double Wye PVC DWV Fitting
Overview: This 2-inch double Wye (45° branch) design helps smooth flow in drainage networks while reducing turbulence, which improves overall drainage efficiency. The double socket interfaces and 45° branches make it adaptable to multiple 2″ pipes, helping to connect complex networks.
Attributes: Constructed from PVC with corrosion resistance, it’s lighter than metal equivalents and designed for Schedule 40 compatibility. The product notes emphasize stable wall thickness for pressure-bearing capacity, and ease of adhesive or gasket connections, making it suitable for DIY and professional installations alike.
NIBCO 4834 11/2 Hub 45 Double Wye
Overview: A compact double Wye fitting designed for 1.5-inch piping, enabling branching in tight spaces. The 45-degree orientation directs flow with minimized turbulence, supporting efficient drainage in wet venting scenarios.
Attributes: Maximum service temperature up to 140°F, with a clear instruction not to test with compressed air or other gases. It’s a solid option for smaller layouts where multiple branches converge toward a main line, balancing space constraints and performance.
Spears P500 Series Double Fixture Wye
Overview: The Spears P500 Double Wye provides a robust PVC solution for connecting two pipes in a configuration that runs in the same direction. The hub ends simplify connection to male unthreaded pipes or fittings, making it compatible with standard DWV systems.
Attributes: PVC construction delivers corrosion resistance and lower weight compared to metal fittings. It’s designed to minimize turbulence at branch points, helping to maintain steady flow through shared lines. Ideal for multi-branch drainage networks where two lines need to join a main trunk.
Frienda 4 Inch Double Sanitary Tee
Overview: Frienda’s 4-inch double sanitary tee provides four-way cross functionality for broader drain, waste, and vent (DWV) applications. It supports more complex routing where multiple branches converge toward a central line, with a focus on maintaining flow efficiency.
Attributes: Constructed from corrosion-resistant PVC with appropriate wall thickness for pressure-bearing capacity. The design aims to reduce turbulence and blockage risks compared with traditional 90° tees, offering greater flexibility for large-diameter drainage schemes.
Buying Guide
- Material and compatibility: Ensure fittings are PVC and rated for DWV use, with solvent-weld connections compatible with common 2″–4″ PVC pipes. Check the standard (e.g., ASTM D2665/D3311) referenced by the product.
- Flow direction and angles: Double Wye and double sanitary tees support branching in multiple directions. A 45° offset (instead of a sharp 90°) can reduce turbulence and blockage risk in busy drain lines.
- Service temperature: Most PVC DWV fittings are rated up to about 140°F. Do not use with compressed air or other gases beyond the intended design.
- Wall thickness and durability: Look for Schedule 40 PVC with adequate wall thickness to sustain pressure and long-term durability, especially in stringent residential codes or climate conditions.
- Size and fit: Double fixtures come in various sizes (2″, 1.5″, 4″). Confirm the pipe size in the house or project to ensure a proper solvent-weld or gasket connection.
- Installation considerations: Choose fittings with hub ends or socket connections that align with the existing piping and local code requirements. Adhesive compatibility and cure time are important for a secure joint.
- Maintenance and accessibility: Consider fittings with shapes that simplify future access for cleaning or reconfiguration, particularly in tight spaces or crowded utility areas.
- Cost versus value: While price is a factor, prioritize fittings that meet code, offer corrosion resistance, and deliver reliable long-term performance in drainage networks.
- Availability and support: Favor brands with detailed specifications, warranties, and readily available replacement parts to reduce downtime during installation or repairs.