Real specs, MaP flush scores and aggregated owner feedback, no paid placements.
Review updated June 2026.
The Glacier Bay 2-Piece Power Flush Toilet offers an impressive 800g MaP score at just 1.1 GPF, making it one of the most water-efficient power flush toilets available. It is a strong choice for budget-conscious shoppers who need reliable waste clearance without high water bills, though the short warranty and standard height may not suit everyone.
| Spec | Value |
|---|---|
| MaP Score | 800g |
| GPF | 1.1 gallons per flush |
| Flush System | Power flush gravity |
| Trapway Size | 2.25-inch |
| Height | Standard (16 in) |
| Rough-In | 12-inch |
| Seat Included | Yes |
| WaterSense | Yes |
| Warranty | 1 year limited |
The 800g MaP score is exceptional for a toilet at this price point. It uses a power flush gravity system that combines a larger trapway with a pressurized flush to move waste efficiently. The 2.25-inch trapway is larger than the standard 2-inch found on many budget toilets, which helps prevent clogs. This toilet can handle heavy waste loads reliably, making it a good option for households with high usage.
At 1.1 GPF, this is among the most water-efficient power flush toilets on the market. Most power flush toilets use 1.28 GPF or more, so the Glacier Bay offers substantial water savings without sacrificing flush power. Over a year, a family of four could save thousands of gallons compared to an older 1.6 GPF toilet. The WaterSense certification confirms that the flush performance has been verified, so you are not trading efficiency for effectiveness.
Owner reviews highlight that the toilet performs well for the price, with many calling it a "great value." Positive themes include strong flush performance, easy installation, and quiet operation. Negative feedback often centers on the seat quality, which some find wobbly or prone to cracking over time. The 1-year warranty is shorter than the industry average of 5 to 10 years, which is a notable drawback for a toilet that may see heavy daily use.
The Glacier Bay is a strong contender in the budget power flush category. Its 800g MaP score and 1.1 GPF are superior specs on paper compared to many competitors. However, the trade-off is the 1-year warranty and the fact that it is a Home Depot house brand, which may have less consistent quality control than established brands. If you prioritize flush power and efficiency above all else and are willing to accept a shorter warranty, the Glacier Bay is a solid choice. For those who want a longer warranty and a more proven track record, the American Standard Cadet 3 may be worth the extra cost.
The MaP (Maximum Performance) score of 800g means the toilet can flush up to 800 grams of solid waste in a single flush. This is a high score, indicating strong performance for residential use.
Yes, it is WaterSense certified, meaning it meets EPA standards for water efficiency and performance. It uses 1.1 GPF, which is 20% less water than the federal standard.
Yes, a seat is included with the purchase. However, some owners report that the seat quality is basic and may not be as durable as aftermarket options.
The rough-in size is 12 inches, which is the standard for most residential bathrooms. Measure from the wall to the center of the floor flange to confirm compatibility.
No, this is a standard-height toilet with a seat height of 16 inches. It is not classified as comfort height, which typically ranges from 17 to 19 inches.
The power flush gravity system uses a larger trapway and a pressurized flush valve to create a strong siphoning action. It moves waste quickly without the need for an electric pump.
The Glacier Bay 2-Piece Power Flush Toilet comes with a 1-year limited warranty. This is shorter than many competitors that offer 5 to 10 years of coverage.
Yes, with an 800g MaP score and a 2.25-inch trapway, it is designed to handle heavy waste loads effectively. It is a good choice for households with high usage.
Most owners report that the flush is relatively quiet compared to older pressure-assisted toilets. The power flush gravity system is quieter than many alternatives.
The Glacier Bay 2-Piece Power Flush Toilet is a Home Depot house brand and is available exclusively through Home Depot and select online retailers like Amazon.
Compared to a standard 1.6 GPF toilet, this 1.1 GPF model can save approximately 2,000 to 3,000 gallons per year for a family of four, depending on usage.
Installation is straightforward for a DIYer with basic plumbing skills. The toilet comes as a two-piece unit that requires assembly of the tank to the bowl.
The Glacier Bay 2-Piece Power Flush Toilet delivers exceptional flush power with an 800g MaP score and industry-leading water efficiency at 1.1 GPF. It is a budget-friendly option that performs well, but the short warranty and standard height may be limiting factors for some buyers.
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We do not run physical lab tests. Rankings are built from published, verifiable data and real owner feedback, never paid placement.
Researched by BFT Editorial Team · Last updated August 14, 2026 · Our review method
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