Spears P102 Series PVC DWV Increaser-Reducer Coupling, Hub x Hub

Spears P102 Series PVC DWV Increaser-Reducer Coupling, Hub x Hub

The Spears P102 Series PVC DWV Increaser-Reducer Coupling is engineered to transition between two different pipe diameters within a drain, waste, and vent (DWV) piping run. Molded from rigid PVC for long-term corrosion resistance, this increaser-reducer fitting features hub x hub (socket) connections on both ends for a secure, solvent-welded joint at each end of the transition. As part of the Spears P102 series, it is available across a range of size combinations to fit common DWV diameter changes encountered in drain, waste, and vent stacks and branch lines. Because both ends are hub style, the fitting installs with standard solvent-cement techniques and does not require additional threaded or mechanical adapters.

Key Features

• Increaser-Reducer Configuration: Provides a smooth transition between two different pipe diameters in a single DWV fitting, eliminating the need for multiple separate couplings and extra joints.
• Hub x Hub Connection: Both ends are hub (socket) style, allowing for a standard solvent-weld joint at each connection point without additional adapters.
• Durable PVC Construction: Molded from rigid PVC material for corrosion resistance, chemical resistance, and long service life in DWV piping applications.
• P102 Series: Part of the Spears P102 series of DWV increaser-reducer couplings, engineered for consistent fit and repeatable performance across the size range.
• Reducer/Increaser Fitting: Functions as either a reducer or an increaser depending on flow direction, adding flexibility during layout and installation.
• DWV Application: Purpose-built for drain, waste, and vent piping systems rather than pressurized water lines.
• Lightweight Design: PVC construction keeps the fitting lightweight for easier handling and installation compared to metallic alternatives.

Technical Specifications

• Product Type: PVC DWV Reducer

Typical Applications

• Drain, Waste, and Vent (DWV) Piping Systems
• Pipe Diameter Transitions Within a Single DWV Run
• DWV Stack and Branch Line Connections
• Residential and Commercial Plumbing Installations
• Plumbing Renovation and Repair Projects
• New Construction Plumbing Rough-In

Why Spears?

Spears is a recognized manufacturer of PVC and CPVC fittings and valves used throughout plumbing and DWV piping systems. This P102 series increaser-reducer coupling reflects a commitment to durable PVC construction and dependable hub x hub connections, giving plumbing professionals a reliable, code-familiar fitting for diameter transitions in DWV installations. Choosing a Spears fitting helps ensure consistent dimensions and fit when paired with other PVC DWV components in the same system.