Gerber 20-314, Two-Piece Toilet, 14" Rough-In, Left-Hand Trip Lever, White, Elongated, 1.6 gpf, Ultra Flush Series

Gerber Ultra Flush® Pressure Assist Toilet – Model G0020311

The Gerber G0020311 Ultra Flush® is a two-piece pressure-assisted toilet engineered for installations requiring a 14" rough-in. It features Sloan FLUSHMATE® technology, dual-fed siphon jets, and a fully glazed trapway for maximum waste removal efficiency. This model is built for high-performance commercial and residential applications that demand reliability, durability, and strong flushing capability.

Performance Features

• Pressure-Assisted Flush System: Sloan FLUSHMATE® vessel delivers 1.6 GPF with high velocity, reducing clog risk and improving waste clearance.
• Dual-Fed Siphon Jets: Enhances bowl washdown and accelerates waste evacuation through the trapway.
• Extended 14" Rough-In: Suitable for installations where plumbing requires greater setback from the wall.
• High MaP Rating: Rated at 1250 grams, indicating superior solid waste removal performance under independent testing.
• Six-Point Tank Mounting System: Ensures secure connection between tank and bowl for improved stability and leak resistance.

Technical Specifications

• Flush Rate: 1.6 gallons per flush (6.0 Lpf)
• MaP Score: 1250 grams
• Rough-In: 14 inches
• Trapway Size: 2 inches, fully glazed
• Water Surface Area: 12-1/2" x 10-1/2"
• Configuration: Two-piece toilet

Installation Considerations

This toilet is designed for floor-mounted installation with a 14" rough-in. Installation by a licensed plumber is recommended to ensure correct setup of the pressure-assist system, tank-to-bowl alignment, and compliance with plumbing codes. Adequate water supply pressure (35–80 psi) is required for optimal performance.

Professional Application Guidance

For Contractors: The G0020311 offers commercial-grade flushing power in a 14" rough-in format, making it ideal for retrofit jobs where standard configurations don't apply. The pressure vessel and trapway design minimize maintenance and service callbacks, even under frequent use.

Installation Tip: Ensure the carrier or flange extension used accommodates the extended rough-in dimension without affecting bowl clearance or alignment.