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KOHLER K-6393 Highline Two-piece elongated toilet, dual-flush

$710.00
$540.94

This product is currently not available for online purchase.

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This Highline dual-flush toilet combines water savings with powerful flush performance. An innovative two-tone flush lever offers the choice of 1.1 or 1.6 gallons per flush; the dual-flush lever is located on the side of the tank like a traditional toilet, leaving the top free for storage. The high-efficiency 1.1-gallon flush reduces water use by more than 30 percent over the 1.6-gallon mode, which adds up to potential water savings of more than 4,000 gallons per toilet, per year.


  • Two-piece design
  • Elongated bowl offers added room and comfort
  • Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults
  • Left-hand nested trip lever offers a choice of 1.1 or 1.6 gallons per flush (gpf)
  • Combination consists of the K-4373 bowl and the K-4458 tank
  • Dual-flush technology allows you to choose between a full or partial flush
  • Eligible for consumer rebates in some municipalities
  • 2-1/8" (54 mm) fully glazed trapway

Additional Resources:
Spec Sheet
Parts Sheet

Recommended and Optional Accessories:
KOHLER K-5420 Clean Caps Low-profile toilet bolt caps
KOHLER K-9237 Dual-flush trip lever, left hand
KOHLER K-23726 Drain treatment
KOHLER K-4636-RL Cachet ReadyLatch Quiet-Close elongated toilet seat
KOHLER K-4458 Highline Toilet tank, dual-flush
KOHLER K-4373 Highline Elongated toilet bowl

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