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

Gerber Maxwell 1.28 GPF Two-Piece Elongated Toilet – Model GWS20912

The Gerber Maxwell GWS20912 is a two-piece elongated toilet engineered for high-efficiency performance and ease of installation. Designed for use in residential and light commercial applications, this model combines a compact tank and elongated bowl to deliver comfort and space optimization while meeting EPA WaterSense® efficiency standards.

Product Features

• Flush Volume: Rated at 1.28 gallons per flush (4.8 Lpf), the Maxwell reduces water usage while maintaining effective waste removal.
• Flush Mechanism: Equipped with a 3-inch flush valve and dual-fed siphon jet for consistent and powerful flushing performance.
• Bowl Configuration: Elongated front design provides added user comfort compared to round-front alternatives.
• Tank-to-Bowl Connection: Multi-point mounting system with tool-free hardware simplifies the installation process.
• Performance Certification: MaP-tested to 1,000 grams for superior bulk waste removal capability.

Technical Specifications

• Model Number: GWS20912
• Configuration: Two-Piece (Bowl and Tank sold separately)
• Flush Rate: 1.28 gpf
• Flush Valve Diameter: 3 inches
• Trapway: Fully glazed, 2-inch
• Color: White
• MaP Score: 1,000 grams

Installation Guidelines

This model is designed for a 12" rough-in and standard floor-mount installations. The included tank-to-bowl hardware kit supports fast, tool-free connection. It is recommended that installation be performed by a licensed plumbing professional to ensure compliance with local codes and optimal functionality.

Contractor Considerations

For Professionals: The Maxwell GWS20912 is an efficient, dependable solution for retrofit projects or new construction where water efficiency and long-term reliability are required. Its MaP certification and siphon jet design reduce maintenance callbacks by improving flush performance and minimizing clog risk.

For Facility Upgrades: Ideal for multi-unit properties requiring code-compliant, water-saving toilet replacements without compromising on performance or user comfort.