17" Rough-In Two-Piece Elongated ErgoHeight Toilet, White,1.6 GPF

Gerber Maxwell® ErgoHeight™ 1.6 GPF Two-Piece Elongated Toilet – Model GMX20918

The Gerber GMX20918 is a two-piece, elongated toilet from the Maxwell® collection, engineered for high-efficiency performance and long-term durability. Featuring a 1.6 GPF flush volume and ErgoHeight™ bowl, this unit provides both effective waste removal and compliance with accessibility standards when properly installed.

Performance Features

• Flush Rate: 1.6 gallons per flush (GPF)
• Flush System: Dual-fed siphon jet with front jet flushing for improved bowl evacuation
• MaP® Score: Rated at 1,000 grams for maximum performance
• ErgoHeight™ Bowl: 16-1/2" rim height supports ADA-compliant installations
• Material: Constructed from vitreous china for durability and resistance to staining

Installation and Assembly

This model includes a tool-free, multi-point tank-to-bowl connection system for simplified installation. The toilet is designed to fit standard 12-inch rough-in configurations and includes a color-matched tank lever and non-corrosive tank-to-bowl bolts. Installation by a licensed plumber is recommended to ensure sealing integrity and compliance with local code.

Technical Specifications

• Toilet Type: Two-piece, elongated bowl
• Flush Volume: 1.6 GPF
• Rough-In: 12 inches
• Trapway: 2 inches (fully glazed)
• Bowl Height: 16-1/2 inches (without seat)
• MaP® Rating: 1,000 grams
• Material: Vitreous china

Application Notes

The GMX20918 is designed for new construction or retrofit installations where performance, accessibility, and code compliance are required. The high MaP® rating and flush efficiency reduce the need for repeat flushing, making this unit suitable for residential and light commercial use. The ErgoHeight™ bowl supports universal design initiatives and meets ADA standards when installed with a compliant seat.