The Avalanche® Concealed Trapway One-Piece toilet is a homeowner favorite. The combination of the one-piece configuration and the concealed trapway makes this one of the best looking, hardest working toilets on the market. Professionals will appreciate the ease of installation and the reliability and homeowners will appreciate its ease of cleaning and seamless look. Standard with the Avalanche® Collection, this model houses a 3" flush valve, Fluidmaster® fill valve, dual siphon jet and more. It's WaterSense approved with it's 1.28 gpf (4.8 Lpf), using 20 percent less water than traditional models.






  • 16.5"+, ErgoHeight® ADA Elongated Bowl for added comfort and ease of seating onto the bowl

  • Color-matched, metal side tank lever with solid durable brass arm to complement any bathroom decor

  • Large, 2" fully glazed trapway for clog-free waste removal

  • Extra-Large Dual fed siphon jets increases the force of the flush, clearing the bowl effectively

  • 3" flush valve for maximum water flow and flushing power

  • 1.28 gpf (4.8 Lpf), saves up to 16,500 gallons per year (vs 3.5 gpf toilet)

  • Corrosion resistant Fluidmaster® flapper for long lasting operation and easy replacement

  • Wide 9 7/8" x 7 3/4" water surface to thoroughly rinse bowl with each flush

  • One-piece toilet


Gerber Avalanche 21-019

Toilet Type
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