Lesso America
ABS DWV Double Fixture Fitting (ALL HUB)
- SKU:
- LN500
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
ABS DWV Double Fixture Fitting (ALL HUB)
ABS DWV Double Fixture Fittings provide a balanced connection point for two plumbing fixture drains entering a common vertical drain, waste, and vent system.
Featuring hub connections on all openings, this fitting is designed to connect two opposing fixture branches into a single vertical ABS DWV line while supporting proper drainage and venting. The double-fixture configuration helps balance flow from two fixtures and can simplify back-to-back or closely spaced plumbing layouts. Manufactured for ABS DWV service, it meets recognized standards including ASTM D2661, CSA B181.1, and NSF Standard 14.
Product Highlights
- ABS DWV double fixture fitting
- All-hub connection configuration
- Designed to connect two plumbing fixtures to one vertical drain line
- Provides opposing fixture branch connections
- Supports balanced flow from dual fixture drains
- Designed to maintain proper DWV drainage and venting
- Useful for back-to-back or closely spaced fixture layouts
- Hub connections accept compatible ABS DWV pipe
- Designed for solvent-cement installation
- Suitable for sanitary drain, waste, and vent systems
- Suitable for sewer and general drainage applications
- Non-pressure fitting
- Maximum operating temperature of 140°F
- Not intended for compressed air or gas service
- Not intended for pressure testing
- Manufactured from virgin ABS polymers
- Complies with ASTM D2661
- Certified to CSA B181.1
- Meets NSF Standard 14 requirements
Technical Specifications
| Product Type | ABS DWV Double Fixture Fitting |
|---|---|
| Material | ABS |
| Connection Type | All Hub |
| Configuration | Double Fixture Fitting |
| Branch Arrangement | Two Opposing Fixture Connections |
| Joint Method | Solvent Cement |
| System Type | Drain, Waste, and Vent (DWV) |
| Pressure Service | Non-Pressure |
| Maximum Operating Temperature | 140°F |
| Primary Function | Connect Two Fixture Drain Lines to a Common Vertical ABS DWV Line |
| Referenced Standards | ASTM D3965, ASTM D2661, CSA B181.1, NSF Standard 14 |
| Typical Applications | Back-to-Back Fixtures, Lavatories, Sinks, Residential Plumbing, Commercial Plumbing, Sanitary Drainage, and Vent Systems |
Connection Configuration
Vertical Run Connections
The main hub connections form the vertical ABS DWV piping run and accept compatible pipe for solvent-cement installation.
Opposing Fixture Branches
Two opposing hub connections allow separate fixture drain lines to enter the common vertical run from opposite sides.
Double Fixture Design
The double fixture fitting is intended for layouts where two plumbing fixtures need to connect to the same vertical DWV line at or near the same elevation.
Its opposing branch configuration can be especially useful in back-to-back fixture arrangements, such as sinks or lavatories installed on opposite sides of a wall.
The internal geometry is designed to support the flow and venting requirements associated with dual fixture connections while keeping the assembly compact.
Why Choose an ABS DWV Double Fixture Fitting?
Dual Fixture Connection
- Connects two fixtures to one vertical DWV line
- Provides opposing branch connections
- Useful for back-to-back plumbing layouts
- Supports balanced drainage from both fixtures
- Can simplify multi-fixture installations
ABS DWV Benefits
- Lightweight construction
- Easy handling and installation
- Suitable for non-pressure drainage systems
- Compatible with ABS DWV piping systems
- Designed for long-term sanitary plumbing service
Typical Applications
Fixture Applications
- Back-to-back lavatories
- Back-to-back sinks
- Closely spaced fixtures
- Bathroom plumbing
- Commercial restroom plumbing
DWV Systems
- Sanitary drain lines
- Waste piping
- Vent systems
- Vertical drainage stacks
- General building drainage
Standards & Compliance
- ASTM D3965: ABS material requirements for pipe extrusion and molded fittings
- ASTM D2661: Schedule 40 ABS drain, waste, and vent pipe and fittings
- CSA B181.1: ABS drain, waste, and vent pipe, fittings, and accessories
- NSF Standard 14: Plastic piping system components and related materials
Installation
Verify every nominal hub size and confirm that the fitting orientation matches the intended vertical run and opposing fixture branch layout.
Cut all mating ABS pipe ends square and remove burrs. Clean and prepare the pipe and hub surfaces according to accepted ABS solvent-cement installation procedures.
Dry-fit the entire assembly before applying solvent cement to confirm alignment of the vertical run and both fixture branches.
Apply compatible ABS solvent cement as required and fully seat each pipe into its corresponding hub while maintaining proper alignment.
Allow completed joints to cure according to the solvent cement manufacturer's recommendations before placing the drainage or vent system into service.

Our piping specialists can help review your fixture layout, branch sizes, vertical drain size, fitting orientation, and ABS DWV compatibility before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What is an ABS DWV double fixture fitting used for?
It is used to connect two fixture drain lines to a common vertical ABS DWV piping run while supporting drainage and venting for both fixtures.
What does ALL HUB mean?
It means every pipe connection on the fitting is a hub-style connection designed to accept compatible ABS DWV pipe.
How many fixture connections does this fitting have?
It provides two opposing fixture branch connections in addition to the main vertical-run connections.
Is this fitting commonly used for back-to-back fixtures?
Yes. Its opposing branch configuration can be useful where two fixtures are positioned on opposite sides of a common wall and connect to the same vertical DWV line.
Is a double fixture fitting the same as a double sanitary tee?
No. Although the fittings may appear similar, a double fixture fitting is specifically configured for appropriate dual-fixture drainage and venting applications. Follow applicable plumbing codes when selecting between fitting types.
Does this fitting require solvent cement?
Yes. The hub connections are intended for compatible ABS solvent-cement installation.
Is this fitting intended for pressure systems?
No. This fitting is intended for non-pressure drain, waste, vent, sewer, and general drainage applications.
Can it be used for compressed air or gas?
No. The supplied product information states that ABS DWV fittings are not intended for transporting compressed air or gas.
Can this fitting be used for pressure testing?
No. The supplied product information states that ABS DWV fittings should not be used for pressure testing.
What is the maximum operating temperature?
The supplied product information specifies applications where operating temperatures do not exceed 140°F.
What should I verify before ordering?
Confirm every hub size, both fixture branch sizes, vertical drain size, fitting orientation, mating ABS DWV pipe sizes, and the intended non-pressure plumbing application.
Important Ordering & Installation Notes
- This listing is for an ABS DWV Double Fixture Fitting with all-hub connections.
- Verify every nominal connection size before ordering.
- The fitting provides two opposing fixture branch connections.
- Confirm that the fitting configuration is appropriate for the intended fixture layout.
- Do not assume a double fixture fitting and double sanitary tee are interchangeable.
- All pipe connections are hub-style connections.
- All hubs accept compatible ABS DWV pipe.
- Confirm vertical-run and branch orientation before installation.
- Dry-fit the complete assembly before applying solvent cement.
- This fitting is intended for non-pressure DWV, sewer, and general drainage applications.
- Do not use for transporting compressed air or gas.
- Do not use for pressure testing.
- Maximum operating temperature is 140°F.
- Use compatible ABS solvent cement for installation.
- Cut pipe square and remove burrs before assembly.
- Clean and prepare all mating surfaces before solvent-cement installation.
- Fully seat each ABS pipe into its corresponding hub.
- Maintain proper vertical-run and fixture-branch alignment during installation.
- Allow completed joints to cure according to the solvent cement manufacturer's recommendations before service.
- Protect the fitting from incompatible chemicals, fire-stopping materials, thread sealants, and other aggressive agents that may damage ABS compounds.
- Consult manufacturer documentation for complete dimensions and connection configurations.
- Follow applicable plumbing codes and manufacturer installation recommendations.