Westlake Pipe & Fittings 420005 0.5″ SKT Cross

Description

Westlake Pipe & Fittings 420005 0.5″ SKT Cross

The Westlake Pipe & Fittings 420005 0.5″ Cross is a versatile and essential PVC plumbing component designed for use at junctions where four separate lines need to intersect or branch from a common point. Manufactured by Westlake Pipe & Fittings (which includes a well-known brand in plastic plumbing systems), this cross-shaped fitting is engineered for compatibility with Schedule 40 PVC pipe and is suited to a wide range of residential, commercial, industrial, and irrigation applications.

At its core, the 420005 SKT Cross is molded from high-quality PVC (polyvinyl chloride) material—a thermoplastic engineered for strength, durability, and chemical resistance. PVC has been broadly adopted in plumbing systems due to its resistance to corrosion, rust, and degradation over time when exposed to water and many common chemicals. Because of this, fittings like the 420005 can withstand long-term use in water distribution, irrigation, drainage, and various fluid-handling systems without compromising performance or safety.

This particular product is nominally sized at 0.5 inches (½″), meaning that each of the four socket (SKT) connections is designed to accept a ½″ nominal Schedule 40 PVC pipe. The designation “SKT” (socket) refers to the socketed ends, which allow a matching PVC pipe to be inserted and then solvent-welded (glued) in place using appropriate PVC solvent cement and primer. Solvent welding creates a continuous, joint-free bond that is highly resistant to leaks and pressure, ensuring long-lasting integrity across the branch connections.

The four-way cross shape is what gives this fitting its name and function: it provides four paths that intersect at right angles to one another. This makes the 420005 SKT Cross ideal for applications where fluid must be routed in multiple directions at a central point—such as in manifold assemblies, multi-directional irrigation layouts, pool or spa plumbing systems, and complex water distribution grids. The ability to branch off in four directions simplifies piping layouts and reduces the need for multiple tees or additional fittings, lowering overall costs and installation time.

From a manufacturing standpoint, Westlake Pipe & Fittings has a longstanding reputation for producing reliable PVC fittings with consistent dimensional accuracy. This consistency ensures that the 420005 fits standard Schedule 40 PVC pipe according to industry norms, which helps installers maintain proper alignment and facilitates smooth system integration. PVC Schedule 40 is widely used for typical pressure-rated plumbing and irrigation systems where moderate pressure and flow requirements exist, and the 420005 meets these expectations through both material selection and molded precision.

PVC as a material also contributes to the cross’s chemical resistance, allowing it to be used in environments where exposure to many non-aggressive chemicals, salts, or acids might degrade other types of pipe materials (like metals). This chemical stability, combined with the lightweight nature of PVC, makes handling, transporting, and installation easier for contractors and DIY installers alike.

In many plumbing codes and practices, PVC Schedule 40 pipe and fittings—including crosses like the 420005—are approved for use in potable water systems as well as irrigation and drain applications (local codes may vary). The fitting’s white color and smooth surface help inspectors and installers quickly identify the component’s material and schedule rating. Though PVC has temperature and pressure limitations compared to metal alternatives, for most residential and commercial piping needs operating below approximately 140°F (60°C), Schedule 40 PVC and its fittings remain a cost-effective and durable choice.

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 420005 0.5″ SKT Cross Features:

• Compatible with Schedule 40 PVC systems widely used in residential, commercial, and irrigation plumbing
• Socket (SKT) connections—for solvent welding with PVC cement for permanent, leak-resistant joints
• Nominal size: 0.5 inch (½″)—each socket connection suits standard Schedule 40 PVC pipe
• Constructed from PVC (polyvinyl chloride)—lightweight, strong, and corrosion-resistant
• Smooth interior helps maintain efficient fluid flow with reduced friction and turbulence
• Simplifies piping layouts by reducing the need for multiple tees and additional fittings
• Four-way cross design—enables branching in four directions from a single junction
• Ideal for irrigation layouts, water distribution systems, pool/spa plumbing manifolds
• Matches industry standards for PVC Schedule 40 dimensions and performance

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