14" Rough-In Two-Piece Elongated Toilet, 1.28 gpf, White

Gerber Viper® GWS31514 Two-Piece Elongated Toilet – 1.28 GPF, 14" Rough-In, WaterSense® Certified

The Gerber GWS31514 Viper® toilet is a high-efficiency, two-piece elongated model engineered for installations requiring a 14-inch rough-in. Designed to meet the performance demands of professional-grade projects, this toilet combines powerful flushing with long-term durability. Its 1.28 GPF rating meets EPA WaterSense® standards for reduced water usage without compromising waste removal efficiency.

Core Features

• Flush Volume: Operates at 1.28 gallons per flush, meeting WaterSense® criteria for water conservation.
• Dual-Fed Siphon Jet: Optimizes flushing performance by increasing velocity and bowl evacuation.
• 3-Inch Flush Valve: Maximizes water flow during flushing for full-bowl coverage and effective rinsing.
• Fully Glazed 2" Trapway: Reduces clog risk and supports consistent waste removal.
• 14-Inch Rough-In: Accommodates retrofit installations where wall-to-flange distance exceeds standard 12-inch dimensions.
• Multipoint Tank-to-Bowl Mounting: Enhances stability and simplifies alignment during installation.

Specifications

• Model: GWS31514
• Type: Two-piece toilet
• Bowl Shape: Elongated
• Rough-In: 14 inches
• Trapway Diameter: 2 inches (fully glazed)
• Flush Valve Size: 3 inches
• Certification: EPA WaterSense®
• Warranty: 15-Year Limited (china and internal components)

Installation Guidance

This unit is designed for floor-mounted installation with a 14" rough-in. Professional installation is recommended to ensure correct sealing and compliance with local code requirements. The multipoint tank-to-bowl mounting system provides added alignment support and stability during setup. Standard plumbing tools, including a wrench and level, are required.

Contractor Application

The GWS31514 is a practical solution for light commercial and residential jobs where extended rough-in dimensions are present. With its high-efficiency flush, pressure-assisted performance, and durable construction, it aligns with modern building standards while minimizing post-installation callbacks.