Gerber MX-21-928, 12" Rough-In Toilet Bowl, White, Elongated, 1.28/1.6 gpf, Maxwell Series

Gerber MX-21-928 Elongated Toilet Bowl – Dual Flush, 12" Rough-In

The Gerber MX-21-928 is a vitreous china elongated bowl designed for use with dual flush systems rated at 1.28/1.6 gallons per flush. Engineered for standard 12-inch rough-in installations, it is compatible with select Gerber dual flush tanks to meet water efficiency targets while maintaining reliable waste removal. The elongated bowl design enhances user comfort and supports ADA compliance when properly matched with a suitable tank and seat.

Key Product Features

• Dual Flush Compatibility: Supports 1.28 GPF (light) and 1.6 GPF (full) flush volumes when used with matching Gerber dual flush tanks.
• Elongated Bowl Design: Provides additional front-to-back seating surface for improved comfort.
• Standard Rough-In: 12-inch rough-in for typical residential or light commercial toilet replacements.
• ADA-Compatible Height: Comfort height bowl meets ADA requirements when installed with an appropriate tank and seat.
• Durable Vitreous China: Non-porous glazed surface resists stains and promotes easier maintenance.

Technical Specifications

• Model: GMX21928 (MX-21-928)
• Bowl Type: Elongated
• Flush Volume: 1.28 / 1.6 gallons per flush (dual flush operation)
• Rough-In: 12 inches
• Material: Vitreous china
• Color: White

Installation Guidelines

Intended for floor-mounted installations using a 12-inch rough-in, the MX-21-928 requires pairing with a compatible Gerber tank to function as part of a complete two-piece dual flush toilet. Secure bowl-to-floor mounting and proper seal installation are necessary for optimal performance. Follow all applicable local plumbing codes and guidelines.

Recommended Applications

This bowl is suited for both new construction and retrofit installations where dual flush water-saving compliance and ADA-accessible fixture height are required. Ideal for multi-family housing, residential renovations, or light commercial facilities prioritizing water conservation and durability.