Kohler Memoirs Classic Comfort K-3818 toilet Review

Kohler Memoirs Classic Comfort K-3818 toilet

Kohler K-3818-0 Memoirs Comfort Height Two-Piece Elongated 1.6 gpf Toilet with Classic Design, White

We expect this model to perform similarly to the tested Kohler Kelston K-3754 although it may differ in price and features. This model has a slightly different style than our tested model but has identical performance characteristics.


  • Two-piece toilet.
  • 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.
  • 1.6 gallons per flush (gpf).
  • 2-1/8-inch glazed trap way.
  • Standard left-hand trip lever included.
  • The combination consists of the K-4380 bowl and the K-4641 tank.
  • Coordinates with other products in the Memoirs collection with Classic design.

Resists soil and odor


Resists drain line clogs


Comfort height




Gallons per flush



  • Single-flush gravity uses the force of gravity and a precision-engineered tank, bowl, and trap way to create a strong siphon during flushing.
  • AquaPiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush.
  • Flush valve’s 3: 2 ratio harnesses the natural force of gravity and optimizes flush performance.
  • Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance.
  • A light-touch canister flush requires a lower actuation force than a flapper.
  • Excellent for solid waste removal
  • Very Good for saving water
  • This model had no discernible flaws in its performance.

Kohler Memoirs Classic Comfort K-3818 toilet Review

The Kohler Memoirs Classic Comfort K-3818 is part of the Toilet test program. In our lab tests, Toilet models like the Memoirs Classic Comfort K-3818 are rated on multiple criteria, such as those listed below.

Solid waste removal: The ability to move simulated waste through the bowl and trap.

Noise: Flush quietness without the seat.

Bowl cleaning: How well flushing cleaned the bowl’s front and sides.

  Solid waste removal  


  Bowl cleaning   


Very Good


Very Good

Kohler Memoirs Classic Comfort K-3818 toilet Review Score

Total Score  7.8 

Fair! The sophistication of traditional design serves as the inspiration for the Memoirs collection. With its rich detailing, this suite of products echoes the stylized lines of historically renowned furniture and architectural design. Two styles offer different dignified interpretations – the clean, crisp lines of the Stately design, and the added rounded detail of the Classic style, which resembles crown molding. With fixtures and faucets available, the extensive Memoirs collection can accommodate both large and small bath and powder rooms.