Skip to content
Appointments are recommended at all KOHLER Stores—get expert help without the wait!
Appointments are recommended

KOHLER K-3998-UR Wellworth Two-piece elongated toilet, 1.28 gpf

$427.65
$320.73

This product is currently not available for online purchase.

To explore this item, check availability, or get expert design guidance, schedule a complimentary showroom appointment with one of our design experts!

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.


  • Two-piece design
  • Elongated bowl offers added room and comfort
  • Right-hand Polished Chrome trip lever
  • Insuliner tank liner minimizes condensation on the tank
  • Combination consists of K-4467-UR tank and the K-4198 bowl
  • Coordinates with other products in the Wellworth collection
  • KOHLERs canister flush valve harnesses the natural force of gravity and optimizes flushing performance
  • 1.28 gpf (4.8 lpf)
  • 2-1/8" (54 mm) fully glazed trapway
  • Class Five canister optimizes the flow out of the tank, harnessing gravity and the natural, powerful reducing cascade of water to increase the power and effectiveness of the flush
  • Includes tank, tank accessory pack, tank cover, trip lever, and bolt caps

Additional Resources:
Spec Sheet
Installation Instructions
Parts Sheet

Recommended and Optional Accessories:
KOHLER K-5420 Clean Caps Low-profile toilet bolt caps
KOHLER K-9379 Wellworth Highline Trip lever
KOHLER K-23726 Drain treatment
KOHLER K-4636-RL Cachet ReadyLatch Quiet-Close elongated toilet seat
KOHLER K-4198 Wellworth Elongated toilet bowl
KOHLER K-4467-UR Wellworth Toilet tank, 1.28 gpf

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare