Westlake Pipe & Fittings 436132 1″ x 1.25″ MPT x SKT Male Reducing Adapter

Description

Westlake Pipe & Fittings 436132 1″ x 1.25″ MPT x SKT Male Reducing Adapter

The Westlake Pipe & Fittings 436132 is a professional-grade 1″ x 1.25″ male reducing adapter engineered to provide a secure, durable transition between different pipe sizes in PVC plumbing systems. This fitting is part of the extensive Westlake Pipe & Fittings product line, which has been trusted by plumbers, contractors, builders, and DIY enthusiasts for decades because of its consistent quality, performance reliability, and compatibility with standard PVC Schedule 40 pipe systems.

At its core, this adapter is designed to connect pipes of two different nominal diameters—specifically a 1-inch male pipe thread (MPT) connection on one side and a 1.25-inch socket (SKT) connection on the other. This size configuration makes it ideal for applications that require stepping up from a smaller threaded component or pipe to a larger PVC line, without compromising the integrity of the joint or the flow characteristics of the system.

The product is molded to conform with Schedule 40 PVC standards, meaning it possesses wall thickness and strength specifications appropriate for a wide range of pressure and non-pressure applications. Schedule 40 PVC is widely adopted in residential, commercial, and industrial plumbing systems, ensuring that this adapter can be integrated seamlessly with other Schedule 40 PVC pipe and fittings.

Finished in a clean and consistent white color, the adapter maintains a professional appearance that aligns with other PVC piping components. Its lightweight design makes it easy to handle and install, while still embodying the structural integrity required for dependable system performance.

The design of this reducing adapter centers on delivering a secure mechanical joining solution between threaded components and solvent-welded pipe systems. The 1″ MPT end is threaded to standard National Pipe Thread (NPT) specifications, allowing it to tightly engage corresponding female threaded fittings such as valves, couplings, or equipment connections. Meanwhile, the 1.25″ socket end is intended to receive plain-end PVC pipe, which is permanently joined using solvent cement to form a leak-resistant, structural bond.

Westlake Pipe & Fittings is a widely recognized leader in the production of PVC piping solutions, known for its extensive manufacturing footprint, commitment to innovation, and emphasis on quality control. Their product range spans a complete suite of pipes, fittings, adapters, and accessories designed to meet rigorous industry standards and provide reliable performance across a variety of environments.

The 436132 reducing adapter embodies Westlake’s balance of material excellence, practical design, and compatibility with standard PVC systems. It allows installers and engineers to design robust, high-performing plumbing configurations with confidence, knowing that components will work together to deliver long-lasting performance.

Westlake’s PVC adapters are designed to deliver performance that aligns with industry expectations for Schedule 40 plastic plumbing. PVC’s resistance to rust, scale buildup, and many chemical exposures means these adapters can be used reliably in potable water systems, irrigation lines, pool and spa systems, and general plumbing applications.

The rigid PVC construction also contributes to a long service life with minimal wear, while the one-piece molded design helps improve joint integrity by eliminating potential weak points that can occur in multi-component assemblies. The smooth interior promotes efficient fluid movement, reducing opportunities for debris accumulation and helping to maintain predictable system performance over time.

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 436132 1″ x 1.25″ MPT x SKT Male Reducing Adapter Features:

• Manufactured from durable PVC (polyvinyl chloride) for corrosion resistance and longevity
• Designed to connect 1″ male pipe thread (MPT) to 1.25″ socket (SKT) PVC pipe
• Threaded end meets NPT specifications for secure mechanical connections
• Solvent-weld socket connection for permanent, leak-resistant joints
• Lightweight yet robust construction improves ease of installation
• Ideal for residential, commercial, irrigation, pool & spa plumbing
• Provides a smooth transition between different pipe diameters
• Clean white finish enhances system aesthetics and inspection
• Schedule 40 rated for standard plumbing systems

Pool Warehouse

America's Favorite Pool Store, building backyard dreams since 1996!