The Niagara Sabre 1.28 GPF Toilet C22.303.01 is a high-efficiency, two-piece toilet designed for homeowners, builders, remodelers, and commercial applications that want strong flushing performance with reduced water consumption. The specific C22.303.01 model is the right-handle version of Niagara’s Sabre 1.28 GPF elongated, ADA-height toilet with a 12-inch rough-in.
The Sabre series combines Niagara’s patented Stealth Technology, a flapperless design, 360-degree rim wash, a fully glazed trapway, and a claimed 1,000g MaP performance rating. It is also listed by Niagara as WaterSense Certified and ADA Compliant.
What Is the Niagara Sabre C22.303.01?
The Niagara Sabre C22.303.01 is part of Niagara’s Sabre family of high-efficiency toilets. According to Niagara’s official product documentation, it is the 1.28 GPF 12-inch rough-in elongated bowl ADA-height model with a right-side handle. The corresponding left-handle combination is C22.302.01.
The “1.28 GPF” specification means the toilet uses 1.28 gallons per flush. The Sabre achieves this efficiency through Niagara’s Stealth Technology, which uses vacuum-assist principles to help produce a powerful flush while limiting water consumption. Niagara describes the technology as providing a powerful and quiet flush.
The model is a two-piece toilet, meaning the tank and bowl are separate components assembled during installation. The toilet seat is not included with the C22.303.01 combination.
Niagara Sabre C22.303.01 Specifications
For anyone researching the model by its exact number, the following specifications are particularly important:
| Specification | Niagara Sabre C22.303.01 |
|---|---|
| Brand | Niagara |
| Series | Sabre |
| Model/SKU | C22.303.01 |
| Flush rate | 1.28 GPF |
| Bowl | Elongated |
| Height | ADA Height |
| Rough-in | 12 inches |
| Configuration | Two-piece |
| Flush type | Single flush |
| Handle | Right handle |
| Technology | Stealth Technology |
| MaP rating | 1,000g |
| Trapway | Fully glazed |
| Rim wash | 360-degree |
| Material | Vitreous china |
| Finish | White |
| Seat | Not included |
| Certification | WaterSense, ADA and applicable plumbing standards |
Niagara’s official product page confirms the 1.28 GPF rating, 1,000g MaP score, elongated ADA-height bowl, 12-inch rough-in, flapperless construction, 360° rim wash and fully glazed trapway.
Stealth Technology and Flushing Performance
One of the main reasons the Niagara Sabre C22.303.01 stands out is its Stealth Technology.
Instead of relying on a conventional flapper-style flushing arrangement, the Sabre uses a Stealth chamber and vacuum-assist technology to help move water efficiently through the bowl and trapway. Niagara says the system is designed to provide strong flushing performance while using only 1.28 gallons per flush.
The toilet also carries a 1,000g MaP rating, which is a widely used performance measurement for toilet flushing capability. Niagara lists this rating directly in its product specifications.
Another useful feature is the 360-degree rim wash. Water is distributed around the bowl rim to help clean the bowl during flushing. The fully glazed trapway provides a smooth internal surface intended to support reliable waste movement and easier maintenance.
The design is also flapperless, which Niagara says helps eliminate problems associated with conventional flapper leaks.
Water Efficiency, Certifications and ADA Design
The 1.28 GPF rating makes the Sabre significantly more water-efficient than older toilets that commonly used substantially more water per flush. Niagara lists the Sabre as EPA WaterSense Certified, while its official documentation also identifies compliance with ASME A112.19.2/CSA B45.1, the DOE Energy Policy Act, California Energy Commission requirements, and CalGreen requirements.
The C22.303.01 is specifically an ADA-height elongated model. This combination can make it more convenient for many users because the higher seating position generally makes sitting down and standing up easier than with a lower-height toilet.
It is important, however, to distinguish ADA-height construction from the complete accessibility requirements of a particular bathroom installation. Local building codes, clearances, grab-bar requirements, and other accessibility provisions can depend on the application.
Dimensions, Installation and Rough-In Requirements
The 12-inch rough-in is one of the most important installation details for the C22.303.01. Before purchasing a replacement toilet, homeowners should measure from the finished wall to the center of the existing floor drain/closet bolts to verify compatibility.
Niagara’s Sabre specification sheet provides dimensional drawings for the elongated 1.28 GPF family and lists measurements for the bowl, footprint, water spot, and assembled configuration. The specification sheet also identifies vitreous china construction and a white finish.
The Sabre line is designed with an extra-large footprint, which can be particularly useful when replacing an older toilet and trying to cover the existing flooring footprint. Niagara also lists upgraded brass bolts and a custom Fluidmaster 400A fill valve as installation-related features.
For a professional installation, always compare the manufacturer’s current dimensional drawing with the actual bathroom layout before drilling, setting the bowl, or modifying flooring.
Maintenance, Warranty and Replacement Parts
The C22.303.01 is designed to reduce several common toilet maintenance issues. Its flapperless technology eliminates the conventional flapper component, while the fully glazed trapway and rim-wash system are intended to support easier cleaning and reliable flushing.
Niagara’s current Sabre information lists an industry-leading 15-year warranty on tank components and a lifetime warranty on vitreous china for the Sabre line. Warranty terms should always be checked against the manufacturer’s current documentation and the specific purchase channel.
Replacement compatibility is another useful consideration. Niagara identifies C22.302.01 as the left-handle combination and C22.303.01 as the right-handle combination, while the bowl and tank components have their own part numbers.
Official Images and Where to Find the C22.303.01
For the most accurate official images of the Niagara Sabre C22.303.01, the best reference is Niagara’s own professional product page. It includes product imagery, the Sabre specifications, certifications, compatible parts and downloadable documentation.
Official Niagara product page: Niagara Sabre 1.28 GPF C22.303.01
Niagara also provides a Sabre 1.28 GPF specification PDF, which is useful when you need dimensional drawings or technical information rather than lifestyle photographs.
Final Verdict: What Makes C22.303.01 Notable?
The Niagara Sabre 1.28 GPF Toilet C22.303.01 combines several features aimed at modern bathroom renovations: 1.28 GPF water efficiency, Stealth vacuum-assist technology, a 1,000g MaP rating, an elongated ADA-height bowl, 12-inch rough-in, flapperless operation, 360-degree rim washing and a fully glazed trapway.
For anyone replacing an existing toilet, the most important checks are rough-in size, bathroom clearance, bowl shape, height, handle position, footprint and local installation requirements. The C22.303.01 is specifically the right-handle, elongated, ADA-height 12-inch rough-in configuration, so confirming those details before ordering can prevent compatibility problems.
For 2026 product research, Niagara’s official product page and current specification documents should remain the primary references for images, dimensions, certifications, warranty information, and replacement components.
