12" Rough-In Two-Piece Elongated ErgoHeight™ Toilet, 1.28 gpf, Biscuit

Gerber Viper® 1.28 GPF Two-Piece Elongated Toilet – Model GWS3151709

The Gerber Viper® GWS3151709 is a WaterSense® certified two-piece elongated toilet engineered for 12" rough-in installations. With a flush rate of 1.28 gallons per flush (GPF), this unit delivers reliable performance while supporting water conservation requirements. Its ErgoHeight™ bowl and elongated design offer improved user comfort, making it suitable for a variety of residential and light commercial settings.

Performance and Design Features

• Flush System: Utilizes a 3" flush valve and dual-fed siphon jets for effective bowl rinsing and waste evacuation.
• Trapway: 2" fully glazed trapway promotes smooth flow and minimizes clog risk.
• Height: ErgoHeight™ design provides a rim height of approximately 16-1/2", compliant with ADA guidelines when installed per code.
• Fill Valve: Equipped with Fluidmaster® 400A for consistent tank refill and long-term reliability.
• Installation Hardware: Includes extra-tall bolt caps and corrosion-resistant brass tank-to-bowl bolts.

Specifications

• Model Number: GWS3151709
• Flush Rate: 1.28 gallons per flush (4.8 Lpf)
• Toilet Configuration: Two-piece elongated
• Rough-In: 12 inches
• Color: Biscuit
• Certification: EPA WaterSense®

Installation Guidance

Designed for simplified installation with multi-point tank-to-bowl mounting and tool-friendly fasteners. While suitable for experienced installers, professional plumbing is recommended to ensure code compliance and optimal performance in permanent installations.

Professional Use Insights

• For Contractors: Built for jobsite demands, with dependable flush efficiency and ease of serviceability. An effective solution for projects requiring water-saving compliance and reduced call-backs.
• For Property Managers: Ideal for long-term maintenance scenarios due to standardized replacement components and a proven internal valve configuration.