The Maxwell ADA-compliant elongated toilet bowl (MX-21-928) is a single commercial-grade bowl from Gerber’s professional fixture lineup. This specific model targets accessibility compliance for commercial and institutional applications.
Why the Maxwell Matters for Commercial Projects
The Maxwell hits the 16.5-inch ErgoHeight requirement for ADA compliance. That extra inch and a half over standard height makes a real difference for aging residents and anyone with mobility issues. Montana’s population is aging fast, and every healthcare facility, public building, and accessible bathroom needs compliant fixtures.
The 3-inch flush valve moves serious water volume. Combine that with the MaP score of 1,000 grams and you’ve got a toilet that won’t embarrass you with callbacks. That MaP rating is maximum — literally as high as the testing goes. The dual-fed siphon jet with front jet flushing action creates the power behind those numbers.
The engineering shows in the details. A 2-inch fully glazed trapway is wider than standard and that glazing prevents buildup. No rough surfaces for waste to catch on. Tool-free tank-to-bowl assembly saves installation time when you’re roughing in a dozen units.
| Specification | Value |
|---|---|
| Bowl Height | 16.5 inches (ErgoHeight™) |
| Rough-in | 12 inches (standard) |
| Trapway Size | 2 inches (fully glazed) |
| Flush Valve | 3 inches |
| Water Use | Dual-flush compatible (1.28/1.6 gpf) |
| MaP Score | 1,000 grams |
| Bowl Weight | Approximately 51-53 lbs (bowl only) |
Tank Compatibility and Water Conservation Options
This bowl works with multiple tank configurations. The matching tanks include G0028990 (1.28 gpf, 12” rough-in), G0028995 (1.28 gpf with Insuliner), G0028994 (1.28 gpf with 14” tank), and G0028992 (1.28 gpf, right-hand lever). All hit the WaterSense 1.28 gallon mark.
Dual-flush compatible means you can spec 1.28 gpf for liquids and 1.6 gpf for solids. Water conservation matters more every year, especially in drought-prone areas. The flexibility to choose your flush volume based on the application — that’s smart engineering.
Requires separate purchase of wax ring, floor bolts, and toilet seat. Standard practice, but worth noting for takeoffs. Two color-matched bolt caps come with the bowl — one less detail to track down.
Suitable for public restrooms, healthcare facilities, assisted-living environments, and home bathroom remodels requiring comfort height. That’s the sweet spot — commercial durability with residential aesthetics.
Installation Notes for Montana Contractors
Floor-mounted bowl with a 2-bolt or 3-bolt tank mounting pattern gives you flexibility with different tank styles. The 12-inch center-to-center wall-to-floor flange is standard rough-in — no special framing required.
Fits any standard elongated toilet seat (sold separately). Don’t get caught ordering round-front seats. The elongated bowl needs elongated seats, and in commercial applications, you’re probably looking at heavy-duty models with stainless steel hinges.
Frequently Asked Questions
What makes this toilet ADA compliant? The 16.5-inch ErgoHeight rim height meets ADA requirements. Standard toilets sit at 15 inches. That extra height reduces the distance users need to lower themselves and makes standing up easier.
How does the MaP score compare to other commercial toilets? At 1,000 grams, this Maxwell model achieves the maximum MaP testing score. Most residential toilets score 350-600 grams. This level of performance prevents embarrassing clogs in high-use commercial settings.
What’s included with the bowl purchase? The package includes the vitreous china elongated toilet bowl and two color-matched bolt caps. You’ll need to separately purchase the wax ring, floor bolts, toilet seat, and your choice of compatible tank.
Can this bowl work with existing tanks? Not likely. The bowl is designed for specific Gerber tank models: G0028990, G0028995, G0028994, or G0028992. Mixing brands rarely works well with modern low-flow designs.
What’s the warranty coverage? Vitreous china carries a Limited Lifetime Warranty. Parts and components typically get 1-5 years depending on the specific kit/tank components under Gerber standard terms.
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