Spears 4137-249 2" x 1" CPVC C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.64
Spears 4137-249 2" x 1" CPVC CTS Reducing Bushing, Spigot x Socket

Spears 4137-249 2" x 1" CPVC CTS Reducing Bushing, Spigot x Socket

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Model: 4137-249

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

$4.64
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Spears 4137-249 2" x 1" CPVC CTS Reducing Bushing, Spigot x Socket

The Spears 4137-249 is a 2" x 1" CPVC CTS reducing bushing designed to transition pipe runs from a larger 2" diameter line down to a smaller 1" diameter line within a single, compact fitting. Molded from CPVC (Chlorinated Polyvinyl Chloride) material and dimensioned to CTS (Copper Tube Size) standards, the 4137-249 features a spigot end that inserts directly into a matching CTS socket fitting and a socket end that accepts a smaller-diameter pipe for a solvent-cement joint. This Spigot x Socket configuration allows installers to reduce pipe diameter at a transition point without adding a separate coupling, simplifying layout and reducing the number of joints in a CPVC CTS piping run. This makes the 4137-249 well suited for plumbing and piping professionals who need to reduce pipe diameter cleanly at a transition point in a CPVC CTS system.

Key Features

  • Trade Size: 2" x 1" reducing bushing, allowing a transition from 2" CTS pipe on one end to 1" CTS pipe on the other within a single fitting.
  • Durable Construction: Molded from CPVC material, a rigid thermoplastic commonly specified for CTS piping systems that require chemical and temperature resistance beyond standard PVC.
  • Connection Type: Spigot x Socket configuration — the 2" spigot end is sized to insert directly into a matching CTS socket fitting, while the 1" socket end accepts pipe for a solvent-cement (solvent-weld) joint.
  • CTS Sizing: Manufactured to Copper Tube Size (CTS) dimensional standards, ensuring compatibility with other CPVC CTS fittings and pipe in the same piping system.
  • Compact Reducer Design: A single-piece bushing reduces pipe diameter at a transition point, eliminating the need for a separate reducing coupling and minimizing the number of joints in the run.
  • Reducing Fitting: Purpose-built as a reducing bushing (not a straight coupling), the 4137-249 is intended specifically for stepping down from 2" to 1" CTS pipe.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • CPVC CTS Piping Systems
  • Pipe Diameter Transitions and Reductions
  • Solvent-Weld (Solvent-Cement) Piping Installations
  • Hot and Cold Water Distribution Piping
  • Residential and Commercial Plumbing Systems

Why Spears?

Spears manufactures CPVC piping components engineered for consistent fit, dimensional accuracy, and reliable long-term performance within CTS piping systems. The 4137-249 reducing bushing's CPVC construction and precise CTS sizing help ensure a secure spigot and socket fit at every joint, making it a dependable choice for professionals and installers reducing pipe diameter in solvent-weld CPVC piping applications. Choosing genuine Spears CPVC CTS fittings helps maintain dimensional consistency and joint integrity across an entire piping system.

Product Specs

list_batch:
SPR-20260918
Product Type:
Reducing Bushing
Connection Type:
Spigot x Socket
Department:
Plumbing
Product Group:
Plumbing Fittings
Product Subgroup:
Bushings
Product Material:
CPVC
Product Size:
2" x 1"

Spears 4137-249 – Frequently Asked Questions

1) How does a spigot x socket reducing bushing install compared to a reducing coupling?
The 2 inch end of the 4137-249 is a spigot, meaning it is sized like pipe and inserts into the socket of another 2 inch CTS fitting, such as a tee or elbow hub. The 1 inch end is a socket that takes 1 inch CTS pipe. So it drops straight into an existing 2 inch hub and steps the run down to 1 inch without a separate coupling, which takes one joint out of the assembly. A reducing coupling has two sockets and needs a stub of 2 inch pipe to get into that hub.
2) Is the Spears 4137-249 solvent welded or threaded?
Solvent welded on both ends. The 1 inch socket is cemented to the pipe and the 2 inch spigot is cemented into the receiving hub. Use CPVC solvent cement and primer appropriate to CPVC, not standard PVC cement. There are no threads on this fitting.
3) Can I use a CPVC CTS bushing on a hot water line, or is PVC enough?
CPVC is the material to use for hot water. The 4137-249 is molded from CPVC, which handles higher temperatures and chemical exposure than standard PVC, and the fitting is intended for hot and cold water distribution piping in residential and commercial plumbing. PVC fittings are cold water only and should not be substituted here.
4) What is the exact Spears part number for a 2 inch to 1 inch CPVC CTS reducing bushing?
Spears 4137-249. That is the manufacturer part number for the 2 inch by 1 inch CPVC CTS reducing bushing in the spigot by socket configuration. The 4137 prefix is the CTS reducing bushing series and the -249 suffix identifies the 2 x 1 size combination.
5) Can a reducing bushing be used to go from 1 inch up to 2 inch at a pump or valve connection?
It makes the same transition in either direction of flow, but the geometry is fixed: the 2 inch end must be a hub that accepts a spigot, and the 1 inch end must be pipe entering a socket. If what you have on the small side is a 1 inch male spigot or a 1 inch fitting hub, this bushing will not mate with it. The 4137-249 is built specifically to step a 2 inch CTS run down to 1 inch CTS, not as a general purpose adapter.
How fast can I get the Spears 4137-249 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 4137-249 come with a warranty?
Absolutely. The Spears 4137-249 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 4137-249?
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
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