Spears CPVC CTS Reducer Bushin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$0.41
Spears CPVC CTS Reducer Bushing, Spigot x Socket Pipe Fitting

Spears CPVC CTS Reducer Bushing, Spigot x Socket Pipe Fitting

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Model: 4137-101

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

$0.41
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Spears CPVC CTS Reducer Bushing, Spigot x Socket Pipe Fitting

The Spears CPVC CTS Reducer Bushing, Spigot x Socket is a reducing fitting engineered specifically for CPVC CTS (Copper Tube Size) piping systems, allowing installers to transition smoothly between two different pipe diameters within the same CTS run. Molded from CPVC for strong corrosion and chemical resistance, this reducer bushing pairs a spigot end with a socket end so it can be inserted directly into an existing CTS fitting while still accepting standard CTS pipe on the opposite side. It is offered in a range of CTS reducing size combinations, making it a practical solution wherever a piping run needs to step down or step up in diameter without swapping to a different fitting type.

Key Features

  • Reducer Bushing Design: Provides a single-fitting transition between two different CTS pipe sizes, reducing the number of fittings required in a run.
  • Durable CPVC Construction: Manufactured from CPVC material, offering strong corrosion and chemical resistance for long-term performance in CTS piping systems.
  • Spigot x Socket Configuration: The spigot end inserts directly into a mating socket fitting while the socket end accepts CTS pipe, simplifying solvent-weld assembly.
  • CTS Sizing Standard: Dimensioned to Copper Tube Size (CTS) standards for consistent, reliable fit with other CTS CPVC piping components.
  • Consistent Wall Thickness: Engineered for uniform fit-up and dependable solvent-cement bonding at both the spigot and socket connections.
  • Bulk Case Packaging: Supplied in case quantities to support contractor, distributor, and commercial project volume needs.

Technical Specifications

  • Product Type: CPVC Reducer Bushing
  • Configuration: Spigot x Socket
  • Sizing Standard: CTS (Copper Tube Size)

Typical Applications

  • CTS CPVC Piping Systems
  • Potable Water Distribution Lines
  • Commercial and Residential Plumbing Installations
  • Pipe Size Transitions Within CTS Systems
  • Retrofit and Repair of Existing CTS Piping Runs
  • New Construction Plumbing Rough-In

Why Spears?

Spears is a recognized manufacturer of CPVC and PVC piping components engineered for dependable, code-compliant performance in demanding plumbing and piping systems. This CPVC CTS Reducer Bushing reflects that focus, combining corrosion-resistant CPVC construction with a precise spigot x socket configuration for consistent, reliable CTS system assembly. Supplied in bulk case packaging, it supports contractors and distributors who need dependable reducing fittings for professional CTS plumbing projects.

Product Specs

Product Type:
Reducer Bushing
Product Material:
CPVC
Configuration:
Spigot x Socket
Standards:
CTS (Copper Tube Size)
Department:
Plumbing
Product Group:
PVC & CPVC Fittings
Product Subgroup:
Fittings and Valves

Spears 4137-101 – Frequently Asked Questions

1) What is the difference between a spigot x socket reducer bushing and a regular socket x socket CPVC fitting?
On the Spears CPVC CTS reducer bushing, one end is a spigot, meaning it is sized like pipe and slips into an existing socket fitting, and the other end is a socket that accepts CTS CPVC pipe. That lets you drop the bushing straight into a tee, elbow or coupling you already have glued in and step the branch down to a smaller CTS size, without cutting the fitting out and replacing it with a reducing fitting. A socket x socket coupling cannot do that, because it needs pipe on both sides.
2) Can I use this CPVC bushing to join CPVC to copper tube?
No. Despite the CTS designation, this is a CPVC-to-CPVC solvent-weld bushing. CTS refers only to the dimensional standard the fitting is made to, not to a copper connection. Both ends bond with CPVC solvent cement, so joining to actual copper tube requires a transition fitting, not this bushing.
3) Is this Spears bushing OK for potable water lines?
Yes. The CPVC CTS reducer bushing is intended for CTS CPVC potable water distribution, along with commercial and residential plumbing, retrofit of existing CTS runs, and new construction rough-in. CPVC is used here for corrosion and chemical resistance in those water lines.
4) How do I install a Spears CPVC CTS reducer bushing - does it thread in or get glued?
It is a solvent-weld fitting, not threaded. Both ends are cemented: the spigot end is cemented into the mating socket of the existing fitting, and the CTS pipe is cemented into the bushing's socket end. Use CPVC solvent cement rated for the system, and prime or clean per the cement manufacturer's directions. There are no gaskets, threads or tools beyond a cutter, deburring tool and cement.
5) Which CTS sizes does the Spears 4137 reducer bushing come in?
The 4137 series is a family of CTS reducing combinations, ordered by manufacturer part number. Two catalog numbers run under it: 4137-101 and 4137-131. Because a bushing's part number encodes the spigot size and the socket size, order by the exact 4137 number that matches the size you are stepping from and the size you are stepping to.
6) Can I use one reducer bushing instead of buying a reducing tee?
That is the point of the fitting. A single CPVC CTS bushing makes the transition between two different CTS pipe sizes, which cuts the number of fittings and joints in the run. On a branch where you already have a full-size socket, bushing it down is one joint instead of cutting in a reducing fitting plus couplings.
7) Do I have to order a whole case of these CPVC bushings?
Spears supplies this reducer bushing in bulk case quantities, which is how it is packaged for contractor, distributor and commercial project volumes. Plan on case quantities rather than a single loose fitting when you spec it.
How fast can I get the Spears 4137-101 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 4137-101 come with a warranty?
Absolutely. The Spears 4137-101 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 4137-101?
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 4137-101 from ZenSupply?
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