Gerber MX-28-990, Toilet Tank, Left-Hand Trip Lever, Metal Lever, White Tank, 1.6 gpf, Maxwell Series
69 Available At All US Supply Locations
Gerber GMX28990 Maxwell Toilet Tank – 1.6 GPF, Front Lever, 12" Rough-In
The Gerber GMX28990 Maxwell toilet tank delivers dependable 1.6 gallon per flush (GPF) performance and is engineered for use with coordinating ErgoHeight elongated bowl assemblies. Designed with durability and function in mind, the tank includes dual-fed siphon jet flushing for consistent bowl clearance, and a corrosion-resistant Fluidmaster fill valve assembly for reliable operation in high-use settings.
Product Overview
- 1.6 GPF Flushing System – Dual-fed siphon jets promote effective bowl evacuation and assist in maintaining cleanliness.
- Factory-Installed Fluidmaster Flapper – Engineered for extended service life with minimal maintenance.
- Tool-Free Tank-to-Bowl Mounting – Multi-point connection system includes a double nut design to streamline installation and reduce risk of leaks.
- Color-Coordinated Lever – Front-mounted handle matches tank finish and is positioned for ergonomic operation.
- Designed for 12" Rough-In – Compatible with standard installation spacing requirements.
Technical Specifications
- Model: GMX28990
- Gallons Per Flush: 1.6 GPF
- Mounting Type: Tank-to-bowl with double nut configuration
- Lever Placement: Front
- Tank Height: 17-1/2"
- Tank Width: 9-3/8"
- Rough-In: 12"
- Compliance: ADA-compatible when installed with matching ErgoHeight bowl
- Warranty: Limited lifetime (manufacturer)
Installation Considerations
This tank is designed for straightforward connection to compatible Gerber Maxwell elongated bowls. It features tool-free mounting hardware to reduce install time. For code compliance and optimal function, installation by a licensed plumber is recommended. Ensure tank-to-bowl seals are properly aligned and fittings are tightened per manufacturer specifications.
Contractor Applications
- Suited for commercial or residential new construction or retrofits
- Ideal for high-use facilities requiring ADA-compliant solutions
- Standardized connections simplify integration into most existing drain rough-in layouts
Specifications
| Weight | 32.000000 |
|---|---|
| Length (inches) | 18 |
| Width (inches) | 9 |
| Height (inches) | 15.5 |
| Item Type | Toilet Parts |
| Brand | Gerber |
| Flush Handle | Right Hand |
| Gallons per Flush | 1.6 gpf |
| Manufacturer | Gerber Plumbing Fixtures, LLC |
| MPN | GMX28990 |
| Sub Type | Toilet Tank |
| Rough-In Size | 12 in |
| Warranty | Lifetime Limited |
| Domestic/Import | Import |
| Flush Valve Size | 3 in |
| Trapway Size | 2 in |
| Material | Vitreous China |
| Mounting Type | Floor |
| Number of Pieces | 2.00E+00 |
| Overall Width | 9-3/8 in |
| Item Returns | This item can be returned |