Description
Westlake Pipe & Fittings 438420 4″ x 2″ Spigot x FPT Reducing Bushing
The Westlake Pipe & Fittings 438420 4″ x 2″ Reducing Bushing is a high-quality PVC fitting engineered to provide a reliable and efficient size transition within piping systems that require both solvent-weld and threaded connections. Designed for durability, compatibility, and long-term performance, this reducing bushing is an essential component for professional plumbers, contractors, maintenance teams, and system designers working in residential, commercial, industrial, irrigation, and pool & spa applications.
This fitting is specifically designed to reduce a 4-inch hub or socket connection to a 2-inch female pipe thread (FPT) outlet. The spigot end allows the bushing to solvent-weld directly into the socket of a larger fitting, such as a coupling, tee, or elbow, while the internally threaded FPT end accepts standard 2-inch male pipe thread connections. This dual-connection functionality makes the bushing extremely versatile, enabling smooth transitions between pipe sizes and connection types without the need for multiple adapters or complex assemblies.
Manufactured from rigid PVC (polyvinyl chloride), the Westlake 438420 reducing bushing offers excellent resistance to corrosion, chemical exposure, and moisture. Unlike metal fittings that may rust, pit, or corrode over time, PVC maintains its structural integrity in a wide range of environments. This makes the fitting particularly suitable for use in water distribution systems, irrigation networks, and applications where long-term exposure to moisture or mild chemicals is expected.
PVC’s lightweight nature also simplifies handling and installation, especially when working with larger diameter fittings like a 4-inch spigot. Despite its low weight, the material delivers impressive strength and rigidity, ensuring that the bushing can withstand typical system pressures when used within recommended limits. The fitting is designed to integrate seamlessly with Schedule 40 PVC piping systems, which are widely used across multiple industries for pressure and non-pressure applications.
One of the key strengths of the Westlake 438420 is its long-body reducing bushing design. The extended body length provides improved alignment and stability when transitioning between pipe sizes. This design helps reduce stress concentrations at the joint, which can otherwise occur when abrupt size changes are made using shorter fittings. The result is a more secure, balanced connection that supports consistent system performance over time.
The 4-inch spigot end is engineered to fit snugly into a standard 4-inch PVC socket. When installed using appropriate solvent cement, this connection forms a strong, permanent bond that becomes an integral part of the piping system. The 2-inch FPT end features precision-molded internal threads that conform to standard pipe thread specifications, ensuring compatibility with a wide range of male threaded components such as adapters, valves, unions, and equipment connections.
The smooth internal surfaces of the bushing help promote efficient fluid flow by minimizing friction and turbulence at the reduction point. This is especially important in systems where maintaining flow efficiency and reducing pressure loss are critical considerations.
The Westlake 438420 reducing bushing is designed with installer convenience in mind. The spigot end allows for quick solvent-weld installation, while the threaded end provides flexibility for future modifications or maintenance. Threaded connections make it possible to remove or replace downstream components without cutting into the pipe, saving time and reducing labor costs during system upgrades or repairs.
The fitting’s white PVC finish is standard across most plumbing and piping systems, making it easy to visually identify during installation and inspection. Its clean, professional appearance also contributes to a neat and organized piping layout in exposed installations.
Westlake Pipe & Fittings is dedicated to helping contractors maximize efficiency and helping engineers design systems that entire communities can rely on.With manufacturing & distribution centers across North America, dedicated sales, technical services, specification engineers and customer support teams, our unparalleled service allows you to design, specify and install complete projects with confidence.
Westlake Pipe & Fittings 438420 4″ x 2″ Spigot x FPT Reducing Bushing Features:
- Spigot x FPT configuration for solvent-weld and threaded connections
- Ideal for plumbing, irrigation, pool & spa, and industrial applications
- Durable PVC construction for corrosion and chemical resistance
- Reduces 4″ socket connection to 2″ female pipe thread (FPT)
- Precision-molded internal threads for secure connections
- Long-body design improves alignment and joint stability
- Compatible with Schedule 40 PVC piping systems
- Smooth internal surfaces for efficient fluid flow
- Lightweight and easy to install
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