Lesso America
PVC DWV Reducing Closet Bend (HUB x HUB)
- SKU:
- LP329-342
- Availability:
- Usually Ships Same Day
- Weight:
- 1.57 LBS
Description
PVC DWV Reducing Closet Bend (HUB x HUB)
PVC DWV Reducing Closet Bend (HUB x HUB) provides a directional and size transition for compatible PVC drain, waste, and vent piping used in closet and toilet drainage connections. The reducing closet bend combines a 3" connection and a 4" connection within one molded fitting while changing the piping direction beneath the fixture.
The Hub x Hub configuration provides receiving connections at both ends for compatible PVC DWV pipe. LESSO identifies this reducing closet bend as a 3" x 4" fitting within its PVC DWV product line, making size orientation, fixture location, adjoining pipe, solvent-weld assembly, installation clearance, and applicable plumbing requirements important considerations before installation. :contentReference[oaicite:0]{index=0}
Product Highlights
- PVC construction
- Hub x Hub design
- 3" x 4" reducing size
- DWV closet bend configuration
- Combines size and directional changes
- Designed for non-pressure drainage piping
- Provides a compact transition beneath a toilet fixture
- Connects compatible PVC DWV piping within closet installations
Technical Specifications
| Product Type | Reducing Closet Bend |
|---|---|
| Manufacturer | LESSO America |
| Part Number | LP329-342 |
| Material | PVC |
| System Type | Drain, Waste & Vent (DWV) |
| Nominal Size | 3" x 4" |
| Connection | Hub x Hub |
| Fitting Configuration | Reducing Closet Bend |
| Smaller Connection | 3" Hub |
| Larger Connection | 4" Hub |
| Joining Method | Compatible PVC Solvent-Cement Joining |
| Primary Function | Provide a Directional and Size Transition in Compatible PVC DWV Closet Piping |
Connection Configuration
The smaller receiving hub accepts compatible 3" PVC DWV pipe for the adjoining drainage connection.
The molded bend transitions between the 3" and 4" connection sizes while changing the piping direction beneath the fixture.
The larger receiving hub accepts compatible 4" PVC DWV pipe for the corresponding closet or drainage connection.
Reducing Closet Bend Design
The reducing closet bend combines a directional change and pipe-size transition within a single molded PVC DWV fitting.
The 3" x 4" configuration allows the adjoining drainage piping to change size while the bend redirects the piping through the required closet connection arrangement.
Because both functions are incorporated into one fitting, the assembly can be more compact than creating the directional change and size transition with multiple separate fittings beneath the fixture.
Why Choose a PVC DWV Reducing Closet Bend?
- Hub x Hub design
- Changes piping direction
- Designed for DWV applications
- Supports compact fixture layouts
- Combines multiple functions in one fitting
- 3" x 4" configuration
- Connects unequal pipe sizes
- Eliminates a separate reducer
- Supports closet drainage transitions
- Maintains one molded connection assembly
Typical Applications
- Toilet drainage piping
- Closet flange connections
- Residential bathroom plumbing
- Commercial restroom installations
- Fixture-to-building-drain transitions
- Sanitary drainage
- Gravity-flow piping
- Non-pressure DWV systems
- Underground drainage layouts
- Compatible PVC waste piping
Standards & Compliance
- ASTM D2665 – LESSO PVC DWV fittings, including the reducing closet bend series, are listed by NSF under this PVC drain, waste, and vent fitting standard. :contentReference[oaicite:1]{index=1}
- CSA B181.2 – LESSO's reducing closet bend is also included in NSF certification listings associated with this Canadian PVC DWV standard. :contentReference[oaicite:2]{index=2}
- Manufacturer Documentation – Confirm exact certifications, dimensional requirements, and installation information for the selected fitting using current LESSO technical literature.
Refer to the Lesso Product Catalog and PVC Schedule 40 & DWV Technical Manual for the exact standards, certifications, listings, dimensions, and technical requirements applicable to this fitting.
Construction Details
Manufactured from PVC, this reducing closet bend combines two receiving hub connections, an integrated pipe-size transition, and a directional bend within one molded fitting body.
The 3" and 4" hub connections are designed to receive appropriately sized compatible PVC DWV pipe, allowing the fitting to transition between the two nominal sizes without requiring a separate reducing coupling.
The molded closet-bend geometry helps provide a compact piping transition for fixture installations while maintaining the intended relationship between the smaller and larger drainage connections.
Installation & Selection Considerations
- Confirm the 3" x 4" size.
- Verify the required bend orientation.
- Check PVC DWV system compatibility.
- Confirm both required hub connections.
- Match each end to the planned fixture layout.
Review the Lesso Product Catalog and PVC Schedule 40 & DWV Technical Manual for additional product information, fitting selection guidance, connection details, standards, and technical information for compatible PVC DWV systems.
Need Help Selecting a PVC DWV Reducing Closet Bend?
Our GetPipe.com team can help review the 3" x 4" sizing, Hub x Hub configuration, fixture connection, PVC DWV compatibility, adjoining pipe, bend orientation, installation clearance, and applicable plumbing requirements before you order.
Frequently Asked Questions
What is a PVC DWV Reducing Closet Bend used for?
It provides both a directional change and a transition between 3" and 4" compatible PVC DWV piping in a closet or toilet drainage arrangement.
What size is this reducing closet bend?
LESSO identifies this Hub x Hub reducing closet bend as a 3" x 4" fitting. :contentReference[oaicite:3]{index=3}
What is the LESSO part number?
The LESSO part number is LP329-342. :contentReference[oaicite:4]{index=4}
What does HUB x HUB mean?
It means both ends of the fitting use receiving hub connections for appropriately sized compatible PVC DWV pipe.
Why is this called a reducing closet bend?
The fitting combines a closet-style directional bend with a built-in transition between unequal pipe sizes.
Does the fitting eliminate the need for a separate reducer?
The size transition is incorporated directly into the molded fitting, so a separate reducer is not required solely to create the 3" x 4" transition at that location.
Why should the fitting orientation be checked before cementing?
The completed solvent-weld joints establish both the bend direction and size orientation, so the fitting should match the planned fixture and drainage layout before joining.
What should I confirm before ordering?
Confirm the 3" x 4" sizing, Hub x Hub configuration, PVC DWV compatibility, fixture location, adjoining piping, installation clearance, and applicable plumbing requirements.
Important Ordering & Installation Notes
- Inspect both hubs before use.
- Prepare pipe ends correctly.
- Confirm the size orientation before joining.
- Position the closet bend before solvent cementing.
- Support adjoining DWV piping after installation.
