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Spears 438072 PVC Reducing Bushing, SPG x FPT Schedule 80
Spears manufactures this PVC Reducing Bushing family to transition between pipe sizes within a Schedule 80 PVC system, pairing a spigot (SPG) end with a female pipe thread (FPT) connection for a secure, code-compliant joint. This size-selectable reducing bushing is molded from durable PVC and is offered in 13 SPG x FPT configurations ranging from 1/4" up to 3" x 2", giving installers a dependable way to step down from a larger pipe run to a smaller threaded outlet without replacing an entire section of pipe. Built to Schedule 80 specifications, it suits pressure and non-pressure PVC piping systems across residential, commercial, and industrial installations.
Key Features
- Trade Size Range: Available in 13 reducing configurations from 1/4" up to 3" x 2", including 1/2" x 1/4", 3/4" x 1/2", 1" x 3/4", 1-1/4" x 1", 1-1/2" x 1-1/4", 2" x 1", 2-1/2" x 2", and 3" x 2", so you can match the exact size transition your PVC run requires.
- Durable Construction: Molded PVC resists corrosion, rust, and chemical degradation for long service life in plumbing applications.
- SPG x FPT Connection: The spigot end inserts directly into a fitting or pipe socket while the female pipe thread (FPT) end accepts a male threaded fitting, simplifying transitions between pipe sizes and connection types.
- Schedule 80 Rated: Built to Schedule 80 specifications for full compatibility with standard PVC pipe and fitting systems.
- Reducing Bushing Design: Allows a smaller pipe or fitting to be connected into a larger diameter opening without needing a full coupling replacement, saving material and installation time.
- Lightweight, Solvent-Weldable Body: PVC construction allows for quick solvent-cement assembly on the spigot end while the FPT end threads on without additional cement.
- Smooth Interior Bore: Reduces turbulence and flow restriction at the size transition point compared to improvised workarounds.
Technical Specifications
- Product Material: PVC
- Product Size: 1/4" - 1/2"
- PDF:PVC Schedule 40 Fittings: https://zensupply.com/content/pdf/spears/pvc-schedule-40-fittings.pdf
Typical Applications
- Residential and Commercial Plumbing Systems
- PVC Pipe Size Transitions and Reductions
- Irrigation and Sprinkler System Connections
- Pressure and Non-Pressure PVC Piping Runs
- Pool, Spa, and Water Feature Plumbing
- Renovation and New Construction Plumbing Projects
Why Spears?
Spears is a trusted manufacturer of PVC and CPVC fittings built for durable, code-compliant performance in demanding plumbing applications. This reducing bushing family reflects that same commitment to reliable Schedule 80 PVC construction, giving installers a dependable, precisely sized way to transition pipe diameters across a wide range of configurations without compromising system integrity, flow, or long-term durability.
Manufacturer Resources
PVC Schedule 40 Fittings
Product Specs
- Product Type:
- Reducing Bushing
- Department:
- Plumbing
- Product Group:
- PVC & CPVC Fittings
- Product Material:
- PVC
- Connection Type:
- Threaded
- Product Size:
- 1/4" - 1/2"
- Grade:
- Schedule 80
Spears SPR-438072 – Frequently Asked Questions
1) How does a SPG x FPT reducing bushing install compared to a socket x thread bushing?
The Spears Schedule 40 reducing bushing has a spigot (SPG) end, not a socket. The spigot is the same outside diameter as pipe, so it solvent-cements INTO an existing fitting socket (a coupling, tee, or elbow hub). The other end is female pipe thread, which takes a male threaded fitting or nipple dry, with thread sealant, no cement. So you're not cementing pipe into this bushing, you're cementing the bushing into a hub. If your reduction point is at the open end of a run of pipe rather than at a fitting, a spigot bushing is the wrong shape for it.
2) What size reductions does the Spears PVC reducing bushing come in?
Thirteen reductions, from 1/2 x 1/4 inch up to 3 x 2 inch: 1/2 x 1/4, 3/4 x 1/2, 1 x 3/4, 1-1/4 x 3/4, 1-1/4 x 1, 1-1/2 x 3/4, 1-1/2 x 1-1/4, 2 x 3/4, 2 x 1, 2 x 1-1/4, 2-1/2 x 2, 3 x 3/4 and 3 x 2. The first number is the spigot size that goes into the fitting hub, the second is the female thread size.
3) Can I cement PVC pipe into the threaded end of this Spears bushing?
No. The FPT end is a female pipe thread and only accepts male pipe thread, a threaded nipple, a male adapter, or a threaded valve or fixture. Cement belongs on the spigot end only. If you need solvent weld on both ends, you want a socket x socket style bushing instead.
4) Will a Schedule 40 PVC bushing work in my existing Schedule 40 system?
Yes. It's built to Schedule 40 dimensions, so the spigot matches standard Sch 40 socket hubs and the pipe threads are standard NPT. Schedule 40 and Schedule 80 share the same outside diameters and the same thread standard, so the joint geometry lines up either way, but match the schedule to your system pressure spec.
5) Is PVC the right material for a bushing on a hot water line?
PVC is the material here, and PVC is a cold water and cold process material. For hot water distribution you need CPVC or a metallic fitting. PVC suits cold potable runs, irrigation and sprinkler connections, pool and spa plumbing, and pressure or non-pressure drain and vent work.
6) Can I use this bushing to drop a big line straight down to a small threaded outlet in one step?
In several sizes, yes. The 3 x 3/4 (438334), 2 x 3/4 (838-248) and 1-1/2 x 3/4 (838-210) all take you down multiple trade sizes in a single fitting, which saves stacking a bushing inside a bushing. Keep in mind the flow restriction is at that transition, so size the outlet for the demand you actually need.
7) I need to add a small threaded takeoff to an existing PVC run without recutting the pipe. Will a reducing bushing do it?
That's exactly the case it handles. If there's an existing fitting hub or socket available, the bushing cements into it and gives you a smaller female threaded outlet, so you don't cut out and replace a coupling or a section of pipe. If there is no open hub, you still have to cut in a tee first, then bush the branch.
8) Do I need thread sealant on the FPT side of a PVC reducing bushing?
The threaded end goes together without cement, so it needs a thread sealant, PTFE tape or a PVC-compatible pipe dope, not solvent. Don't overtighten plastic threads, hand tight plus one to two turns with a wrench is the usual practice, since PVC female threads split if you keep pulling on them.
How fast can I get the Spears SPR-438072 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 SPR-438072 come with a warranty?
Absolutely. The Spears SPR-438072 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 SPR-438072?
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