Spears 437-166 1-1/4" x 1/2" P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.17
Spears 437-166 1-1/4" x 1/2" PVC Schedule 40 Reducing Bushing, Spigot x Socket

Spears 437-166 1-1/4" x 1/2" PVC Schedule 40 Reducing Bushing, Spigot x Socket

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Model: 437-166

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

$1.17
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Spears 437-166 1-1/4" x 1/2" PVC Schedule 40 Reducing Bushing, Spigot x Socket

The Spears 437-166 is a 1-1/4" x 1/2" PVC Schedule 40 reducing bushing engineered to transition pipe sizes within PVC pressure piping systems. Featuring a spigot x socket (SPGxSOC) connection configuration, this fitting lets installers step down from a 1-1/4" line to a 1/2" branch while maintaining a solvent-weld seal on both ends. Molded from PVC and built to Schedule 40 dimensional standards, the 437-166 reducing bushing delivers dependable, corrosion-resistant performance for plumbing, irrigation, and general-purpose piping work. This reducing bushing is commonly specified by plumbing and irrigation contractors who need to adapt larger PVC trunk lines down to smaller branch lines without switching to a full coupling and adapter combination.

Key Features

  • Trade Size: 1-1/4" x 1/2" reducing configuration provides a clean, code-compliant transition between two different pipe diameters.
  • Durable Construction: Molded from PVC for excellent corrosion and chemical resistance in pressurized piping systems.
  • Spigot x Socket Connection: SPGxSOC ends allow the fitting to be solvent-welded directly into a socket fitting on one end and a socket pipe or fitting on the other for a secure, leak-resistant joint.
  • Schedule 40 Rating: Manufactured to Schedule 40 dimensional standards for compatibility with standard PVC Schedule 40 pipe and fittings.
  • Reducing Bushing Design: Simplifies size transitions without the need for multiple couplings, reducing joint count and potential leak points.
  • Easy Installation: PVC construction and spigot x socket ends allow the 437-166 to be installed with standard PVC primer and solvent cement, integrating cleanly into existing Schedule 40 pipe runs.

Technical Specifications

  • Refer to manufacturer documentation for complete specifications.

Typical Applications

  • PVC Pressure Piping Systems
  • Irrigation and Sprinkler System Pipe Transitions
  • Residential and Commercial Plumbing
  • Pipe Size Reductions in Schedule 40 PVC Runs
  • Industrial and Agricultural Piping Installations

Why Spears?

Spears is an established manufacturer of PVC and CPVC piping components used across plumbing, irrigation, and industrial applications. The 437-166 reducing bushing's PVC construction and Schedule 40 configuration reflect the dimensional consistency contractors rely on when transitioning pipe sizes in pressurized systems. Choose Spears fittings for dependable, solvent-weld-ready components that fit standard PVC Schedule 40 pipe and fitting systems.

Product Specs

list_batch:
SPR-20260918
Product Type:
Bushing
Connection Type:
Spigot x Socket
Grade:
Schedule 40
Department:
Plumbing
Product Group:
Plumbing Fittings
Product Subgroup:
Bushings
Product Material:
PVC
Product Size:
1-1/4" x 1/2"

Spears 437-166 – Frequently Asked Questions

1) How does the spigot x socket configuration on the Spears 437-166 bushing actually install?
The 437-166 has a spigot (male) end sized like 1-1/4 inch pipe and a 1/2 inch socket (female) end. The spigot drops into the 1-1/4 inch socket of an existing fitting, such as a tee, elbow, or coupling, and the 1/2 inch socket takes 1/2 inch Schedule 40 pipe. Both joints are solvent welded with standard PVC primer and cement. Note the spigot end does NOT accept pipe, so if you are reducing in the middle of a straight 1-1/4 inch pipe run you need a coupling or a reducing coupling instead of a bushing.
2) Can I use this PVC bushing on a hot water line?
No. The 437-166 is molded from PVC, which is for cold water and ambient temperature pressure service only. For hot water or elevated temperature lines, use CPVC fittings rather than PVC. PVC does hold up well against corrosion and chemical attack, which is why it is used for irrigation, pool, and general cold-water plumbing.
3) Reducing bushing or reducing coupling for stepping 1-1/4 inch down to 1/2 inch?
Pick based on what the reduction lands in. A bushing like the 437-166 is the choice when you are reducing at a fitting port, because its spigot end plugs straight into the 1-1/4 inch socket and takes up almost no space. A reducing coupling is what you want when you are joining two lengths of pipe, since both of its ends are sockets. The bushing also cuts a joint out of the assembly compared with running a coupling plus an adapter, which means one less potential leak point.
4) Do I need anything besides the bushing to make up the joint?
You supply PVC primer and solvent cement; the 437-166 ships as the fitting only, with no gaskets, threads, or hardware involved. Both ends are solvent weld, so there is no Teflon tape or thread sealant in play. Dry fit the spigot into the 1-1/4 inch socket first to confirm depth before you cement.
5) Is this bushing suitable for an irrigation system where I need to take a 1/2 inch sprinkler branch off a 1-1/4 inch main?
That is one of its standard uses. Drop the 437-166 into the 1-1/4 inch socket of a tee on the main line and solvent weld 1/2 inch Schedule 40 pipe into the 1/2 inch socket to run the branch. It is specified for irrigation and sprinkler pipe transitions as well as residential, commercial, agricultural, and industrial Schedule 40 PVC runs.
6) What is the exact part number to order this Spears 1-1/4 x 1/2 inch PVC bushing?
Order Spears part number 437-166. The 437 prefix is the PVC Schedule 40 reducing bushing series and the -166 suffix calls out the 1-1/4 inch x 1/2 inch spigot x socket size combination.
How fast can I get the Spears 437-166 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 437-166 come with a warranty?
Absolutely. The Spears 437-166 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 437-166?
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 437-166 from ZenSupply?
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