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Kohler Wellworth® Two-piece elongated 1.28 gpf toilet with insulated tank

SKU: 3998-U-7

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Product Details

Kohler 3998-U-7

Wellworth toilets have been an American benchmark for style, innovation, and performance since 1936. This Wellworth high-efficiency toilet delivers significant water savings with a 1.28-gallon flush setting that saves up to 16,500 gallons per year, compared to an old 3.5-gallon toilet, without sacrificing flush power. This model includes an insulated tank liner to help prevent condensation on the outside of the tank, and an elongated shape for extra comfort.


  • Length 30"
  • Width 18"
  • Height 29.25"
  • Introduction Date 12/7/2010
  • Watersense yes
  • Flush Rate 1.28 gal/flush
  • Material Vitreous China

Additional information

  • Two-piece design
  • Elongated bowl offers added room and comfort
  • 1.28 gpf (4.8 lpf)
  • 2-1/8'' (54 mm) fully glazed trapway
  • Left-hand Polished Chrome trip lever
  • Insuliner® tank liner minimizes condensation on the tank
  • Combination consists of the K-4467-U tank and the K-4198 bowl
  • Coordinates with other products in the Wellworth collection

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