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

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

The Spears P102 Series PVC DWV Increaser-Reducer is a solvent-weld, Hub x Hub (HxH) fitting engineered to transition pipe diameters within drain, waste, and vent (DWV) piping systems. Molded from durable PVC, this increaser-reducer is available in sizes ranging from 1-1/2" through 6" to fit a wide range of DWV layouts. The hub x hub configuration allows both ends to be solvent-welded directly into the run, letting installers step pipe diameter up or down with a single fitting instead of stacking multiple couplings, streamlining rough-in work on both residential and commercial drainage systems. This DWV increaser-reducer is a practical choice whenever a drain, waste, or vent line needs to change diameter without introducing extra fittings or joints into the run.

Key Features

• Trade Size Range: Offered in sizes from 1-1/2" up to 6" to match diameter transitions across a variety of DWV piping runs.
• Durable Construction: Molded from PVC for corrosion resistance and long-term performance in drain, waste, and vent applications.
• Hub x Hub (HxH) Connection: Solvent-weld hub ends on both sides provide a secure, leak-resistant joint without threading or additional adapters.
• Increaser-Reducer Design: A single fitting handles the diameter transition, reducing the number of joints and connection points needed in a run.
• Lightweight PVC Material: Easier to handle, cut, and solvent-weld than metallic alternatives, while resisting the corrosive effects of waste and vent gases.
• Consistent Fit: Precision-molded hub openings help ensure a reliable, properly aligned solvent-weld joint at each transition point.
• Space-Saving Transition: Combines the increase and reduce function of two separate fittings into one compact hub x hub body.

Technical Specifications

• Product Type: PVC DWV Reducer
• Product Size Range: 1-1/2" to 6"
• Connection: Hub x Hub (HxH)
• Material: PVC

Typical Applications

• Drain, Waste, and Vent (DWV) Piping Systems
• Residential and Commercial Plumbing Installations
• Pipe Diameter Transitions in Vertical or Horizontal DWV Runs
• New Construction Plumbing Rough-In
• Plumbing System Repairs and Retrofits

Why Spears?

Spears PVC DWV fittings are precision-molded to deliver a consistent, reliable fit for solvent-weld drain, waste, and vent systems. Choosing a PVC increaser-reducer from Spears gives plumbing professionals a corrosion-resistant, easy-to-install solution for managing pipe diameter transitions without sacrificing joint integrity, helping keep DWV installations code-compliant and leak-free from rough-in through final tie-in. With sizes spanning 1-1/2" to 6", the P102 Series gives contractors and installers a dependable option for nearly any DWV diameter change.