Spears P428-15 1-1/2" PVC DWV ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$7.17
Spears P428-15 1-1/2" PVC DWV Double Sanitary Tee Fitting with Four Hub Connections

Spears P428-15 1-1/2" PVC DWV Double Sanitary Tee Fitting with Four Hub Connections

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Model: P428-15

In Stock (leaves warehouse same day if ordered before 3pm ET)

$7.17
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Spears P428-15 1-1/2" PVC DWV Double Sanitary Tee Fitting with Four Hub Connections

The Spears P428-15 is a 1-1/2" PVC Double Sanitary Tee engineered for DWV (Drain, Waste, Vent) plumbing systems. This fitting features four hub (H x H x H x H) solvent-weld connections, allowing multiple branch lines to tie into a single vertical stack while maintaining proper sanitary flow direction for waste and vent piping. Constructed from PVC material, the P428-15 is designed for use in residential and commercial drain-waste-vent piping networks where dependable branch connections are required. As part of the Spears PVC & CPVC Fittings product line, this Double Sanitary Tee provides a practical solution for Fittings and Valves applications within broader plumbing system installations.

Key Features

  • Fitting Size: 1-1/2" nominal size designed for compatibility with standard 1-1/2" PVC DWV piping systems commonly found in residential and light commercial plumbing.
  • Double Sanitary Tee Design: Combines two sanitary tee branch inlets into a single fitting body, allowing two separate branch lines to enter a common vertical DWV stack from opposite sides.
  • Four Hub (H x H x H x H) Connections: All four fitting openings are hub-style, solvent-weld connections, providing a consistent joining method across every port for straightforward installation.
  • PVC Construction: Manufactured from PVC material suited to drain, waste, and vent plumbing applications where chemical resistance and ease of solvent welding are important.
  • DWV System Compatibility: Purpose-built for Drain-Waste-Vent piping networks, supporting proper venting and drainage in multi-fixture plumbing layouts.
  • PVC & CPVC Fittings Product Line: Part of the Spears PVC & CPVC Fittings and Valves product group, aligning with a broader family of Spears plumbing fitting components.
  • Plumbing Department Classification: Categorized under the Plumbing department, reflecting its intended use in standard plumbing drain, waste, and vent installations.

Technical Specifications

  • list_batch: SPR-20260918
  • Product Type: Double Sanitary Tee
  • Department: Plumbing
  • Product Group: PVC & CPVC Fittings
  • Product Subgroup: Fittings and Valves

Typical Applications

  • Residential Plumbing Systems
  • Commercial Drain-Waste-Vent Installations
  • Multi-Fixture Bathroom Branch Connections
  • Kitchen and Laundry Drain Line Branch Fittings
  • New Construction DWV Piping Networks
  • Plumbing System Repairs and Retrofits

Why Spears P428?

Spears Double Sanitary Tee fittings are manufactured from PVC material for dependable use in Drain-Waste-Vent plumbing systems, and the P428-15 configuration is built to handle branch connections from two separate lines through its four hub, solvent-weld openings. Designed as part of the Spears PVC & CPVC Fittings and Valves product line, this fitting is intended to give plumbing professionals a consistent, straightforward option for DWV branch connections in both residential and commercial installations. Choosing a Spears fitting for DWV applications means selecting a component built specifically for the plumbing department's drain, waste, and vent piping needs.

Product Specs

list_batch:
SPR-20260918
Product Type:
Double Sanitary Tee
Department:
Plumbing
Product Group:
PVC & CPVC Fittings
Product Subgroup:
Fittings and Valves

Spears P428-15 – Frequently Asked Questions

1) What is a double sanitary tee used for in a DWV stack?
A double sanitary tee lets two branch drain lines enter a vertical waste stack from opposite sides through one fitting body. The Spears P428-15 does this in 1-1/2 inch PVC, with the branch inlets angled to keep sanitary flow direction into the stack. Typical use is back-to-back fixtures, a kitchen and laundry pair, or two lavatories sharing a stack.
2) Are all four openings on the Spears P428-15 hub connections, or is one a spigot?
All four are hubs, H x H x H x H, so every port is a socket that takes pipe with PVC solvent cement. There is no spigot end on the P428-15, which means you cannot slip it directly into another fitting's hub without a short piece of pipe.
3) Can I use a double sanitary tee for back-to-back toilets?
Not with this one. The Spears P428-15 is a 1-1/2 inch fitting, and water closets need 3 or 4 inch drainage, so it is sized for lavatories, kitchen sinks, laundry standpipes and vent work. Many codes also restrict double sanitary tees on back-to-back fixture drains in favor of a double fixture fitting or double combination wye and eighth bend; check the inspector's requirement for the fixtures involved.
4) What cement do I use on a Spears PVC DWV double sanitary tee?
The four hubs are solvent-weld sockets, so they are joined with PVC primer and PVC solvent cement. Do not use ABS cement or transition cement unless you are actually joining PVC to ABS; the fitting itself is PVC.
5) Can the P428-15 be used as a vent fitting as well as a drain fitting?
Yes. It is made for drain, waste and vent piping networks, so it works for tying two 1-1/2 inch vent branches into a vent stack as well as for fixture drain branches. On the drain side, keep the branch inlets oriented so flow enters in the sanitary direction.
6) Should I use a double sanitary tee or two separate sanitary tees on the stack?
One double sanitary tee replaces two single tees and the pipe between them, so the branch inlets land at the same elevation on opposite sides of the stack and the assembly is shorter. Use two separate sanitary tees when the branches have to enter at different heights or only one side is being picked up now. The P428-15 handles the symmetric, same-elevation case in 1-1/2 inch.
7) Where can I get the laying length and socket depth dimensions for the Spears P428 double sanitary tee?
Spears publishes the PVC DWV fitting dimension tables for the P428 pattern, and they are the place to confirm center-to-end, socket depth and overall laying length before you cut pipe for a tight stack. Those dimension sheets accompany the P428-15.
How fast can I get the Spears P428-15 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Spears P428-15 come with a warranty?
Absolutely. The Spears P428-15 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Spears P428-15?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Spears P428-15 from ZenSupply?
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