The Original Stealth® – 3 LPF Single Flush Elongated Toilet

Looking for a powerful water saving toilet? The first and only Ultra-High-Efficiency Toilet is here!

Because of our patented hydraulic technology, the Original Niagara Stealth uses only 3 liters per flush – half of what federal regulations require. The strong syphonic action makes this the world’s best high efficiency toilet on the market.

Innovative and stylish, it has a whisper quiet flush and low profile body. An elongated bowl provides maximum comfort. And because of its integrated flapperless technology, it’s virtually maintenance free. Think of it as the secret weapon of the water revolution.


  • Quiet, powerful flush delivered with a patented Stealth flush chamber and air transfer system.
  • Reliable standard Fluidmaster 400A fill valve
  • Stylish, inconspicuous and durable flush button
  • Fully glazed 50.8mm (2") trapway helps achieve a clear bowl every time
  • Two-piece toilet
  • Elongated bowl for maximum comfort


  • One flush thoroughly evacuates the bowl every time, eliminating double flushing
  • EZ Height design makes it easier to sit and stand
  • No flapper to cause leaks
  • Excellent MaP scores for better flushing


  • Eligible for Consumer Rebates
  • 800g MaP Score


Bowl Dimensions: 355 (14”) W x 432mm (17”) H x 724mm (28.5”) D
Footprint: 521mm (20.5”) L x 260mm (10.25”) W
Water Spot: 203mm(8″) x 152mm(6″)
Assembled Dimensions: 476mm (18.75”) W x 787mm (31”) H x 733mm (28.875”) D
Rough In: 305mm (12”)

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Single Flush Stealth® Technology

Quiet. Powerful. Proven. See how Niagara's patented technology actually works. Watch the video and finally stop wondering "How is this even possible?"

Niagara Stealth 0.8GPF Toilet – The Home Depot

The Original Stealth® – 3 LPF Single Flush Elongated Toilet