Westlake Pipe & Fittings | 837420 | 4" x 2" SP x Slip Reducer Bushing | Flush Style

Westlake Pipe & Fittings 837420 is a 4" x 2" SP x slip reducer bushing in a flush style design. This fitting is used in compatible PVC piping systems to reduce from a 4" spigot connection to a 2" slip connection in pool, spa, plumbing, and water-handling applications.

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Key Features

• Westlake Pipe & Fittings 837420 is a 4" x 2" reducer bushing for compatible PVC piping systems.

• SP x slip configuration transitions from a 4" spigot connection to a 2" slip connection.

• Flush style design supports a compact finished connection in compatible plumbing assemblies.

• Suitable for pool, spa, filtration, pump room, water treatment, and commercial plumbing applications.

• Used for reducing pipe size where a 2" slip connection is required within a larger 4" fitting layout.

• Designed for service, repair, replacement, or new installation work involving compatible PVC plumbing.

• Intended for professional installation with correct solvent cement, pipe preparation, alignment, and system compatibility.

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Product Overview

The Westlake Pipe & Fittings 837420 4" x 2" SP x Slip Reducer Bushing is designed to adapt compatible PVC piping from a 4" spigot connection to a 2" slip connection. Its flush style profile supports a compact installation where fitting space, alignment, and clean assembly are important.

This reducer bushing is commonly used in pool equipment pads, spa plumbing, filtration systems, commercial pump rooms, and water treatment layouts where a smaller slip connection must be integrated into a larger fitting assembly. Proper installation helps maintain a secure, serviceable connection for long-term water system performance.