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Toilet Review

Glacier Bay 2-Piece Power Flush Toilet Review: Budget Power Flush with WaterSense Efficiency

Real specs, MaP flush scores and aggregated owner feedback — no paid placements.

Why Trust This Review

Review updated June 2026.

Quick Verdict

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.

SpecValue
MaP Score800g
GPF1.1 gallons per flush
Flush SystemPower flush gravity
Trapway Size2.25-inch
HeightStandard (16 in)
Rough-In12-inch
Seat IncludedYes
WaterSenseYes
Warranty1 year limited
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How powerful is the Glacier Bay 2-Piece Power Flush Toilet flush?

The Glacier Bay 2-Piece Power Flush Toilet has a MaP score of 800g, meaning it can clear up to 800 grams of solid waste in a single flush. This is a strong performance level, well above the 500g threshold recommended for residential use, and it competes with many higher-priced models.
Expert Take

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.

How water-efficient is the Glacier Bay 2-Piece Power Flush Toilet?

This toilet uses only 1.1 gallons per flush (GPF), which is significantly less than the federal standard of 1.6 GPF. It is WaterSense certified, meaning it meets EPA criteria for water efficiency and performance, saving up to 20% more water than standard models.
Expert Take

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.

What do owners say about the Glacier Bay 2-Piece Power Flush Toilet?

Aggregated feedback from multiple retailers shows that owners consistently praise the toilet's flush power and water efficiency. Many note that it clears waste in one flush without clogging, and they appreciate the low water usage. Common criticisms include the short 1-year warranty and occasional reports of the seat being less durable than expected.
Expert Take

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.

How does the Glacier Bay 2-Piece Power Flush Toilet compare to similar toilets?

Compared to other budget power flush toilets like the American Standard Cadet 3 Power Flush, the Glacier Bay offers a higher MaP score (800g vs 700g) and lower water usage (1.1 GPF vs 1.28 GPF). However, the American Standard has a longer warranty and a more durable seat.
Expert Take

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.

Good fit if you...

  • Want the most water-efficient power flush toilet available
  • Need a toilet that can handle heavy waste loads without clogging
  • Are on a tight budget and need a reliable, no-frills toilet
  • Prefer a standard-height toilet for a traditional feel

Skip it if you...

  • Want a toilet with a longer warranty than 1 year
  • Prefer a comfort-height (17-19 inch) toilet for easier sitting and standing
  • Need a toilet with a slow-close or premium seat included

Frequently Asked Questions

What does the MaP score of 800g mean?

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.

Is the Glacier Bay Power Flush toilet WaterSense certified?

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.

Does this toilet come with a seat?

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.

What is the rough-in size for this toilet?

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.

Is this a comfort-height toilet?

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.

How does the power flush gravity system work?

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.

What is the warranty on this toilet?

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.

Can this toilet handle heavy waste loads?

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.

Is this toilet noisy when flushing?

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.

Where is this toilet sold?

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.

How much water does this toilet save per year?

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.

Is the installation difficult?

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.

Sources

  • MaP Flush Testing Program, map-testing.com
  • EPA WaterSense, epa.gov/watersense
  • Manufacturer published specifications

Our Verdict

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.

Check Price on Amazon

How we rank & our data sources

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 June 5, 2026 · Our review method

B
Researched by BFT Editorial Team

The Best Flushing Toilets editorial team researches MaP flush scores, water efficiency data, and owner feedback to help you find the right toilet.

Updated June 2026 · Toilet Reviews
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