Gerber 20-312, Two-Piece Toilet, 12" Rough-In, Left-Hand Trip Lever, White, Elongated, 1.6 gpf, Ultra Flush Series

Gerber Ultra Flush® 1.6 GPF Pressure-Assist Two-Piece Toilet – Model G0020312

The Gerber G0020312 Ultra Flush® toilet is engineered for high-efficiency flushing in both residential and light commercial applications. Utilizing a Sloan Flushmate® pressure-assist vessel, this two-piece unit provides powerful performance with a 1.6 gallon per flush rating. Its fully glazed trapway and large water surface area support effective waste removal while maintaining bowl cleanliness between uses.

Product Highlights

• Flush Technology: Sloan Flushmate® pressure-assist system for maximum bowl evacuation and reduced clogs
• Trapway: 2" fully glazed trapway promotes smooth, clog-resistant waste flow
• Water Surface Area: 12-1/2" x 10-1/2" for improved bowl rinse coverage
• Rough-In: Standard 12" rough-in for conventional floor-mounted installation
• Mounting: Six-point tank-to-bowl connection for enhanced stability
• MaP Rating: 1250g performance score for high-efficiency waste removal

Technical Specifications

• Flush Volume: 1.6 gallons per flush (6.0 liters per flush)
• Configuration: Two-piece elongated bowl with separate tank
• Material: Vitreous china
• Color: White
• Compliance: Meets ANSI/ASME and CSA standards for performance and durability

Installation Considerations

This unit is designed for standard 12" rough-in floor-mount configurations and is best installed by qualified plumbing professionals. The pressure-assisted flushing mechanism requires accurate alignment and secure tank-to-bowl connection to ensure leak-free operation and full pressure performance. Use of proper sealing materials and torque specifications is critical.

Contractor-Focused Notes

• ✔️ Pressure-assist flush eliminates most clog-related callbacks
• ✔️ High-performance 1250g MaP rating supports use in high-traffic settings
• ✔️ Six-point tank mounting offers added stability during and after installation

Key Advantages

• ✔️ Designed to meet high-performance standards for flushing efficiency
• ✔️ Suitable for residential upgrades and multi-unit replacement work
• ✔️ Compatible with standard toilet seat and wax ring accessories (sold separately)