Kohler K-3999-0 Highline Comfort Height Toilet Review 2024

Kohler-K-3999-0-Highline-Comfort-Height-Toilet

Trusted for decades by professionals, Kohler’s Highline® toilets are best selling toilet family. An ideal combination of construction, style and water efficiency, the Highline K-3999-0 toilet is known for its elegant flared tank and subtle stepped detailing. Featuring with Kohler’s powerful canister flush valve, the toilet doesn’t sacrifice its performance for design. An innovative 1.28-gallon powerful flushing provides significant water savings (up to 16,500 gallons per year), compared to old 3.5-gallon toilets.

The Kohler K-3999-0 Highline Comfort Height Two-Piece Elongated Toilet is a feature-packed option that combines comfort, efficiency, and performance. This comprehensive Kohler K-3999-0 review will explore the design, features, and overall performance of the toilet to help you determine if it’s the right choice for your home, bathroom and waste type;

Kohler K-3999-0 Highline Comfort Height Toilet

Kohler K-3999-0 Highline Comfort Height Two-piece Elongated 1.28 Gpf Toilet
  • Product Specifications
FeatureDetails
BrandKOHLER
Item model numberK-3999-0
Country of OriginMexico
MaterialVitreous China
ColorWhite
Installation TypeFloor Mounted
ShapeElongated
Seat Material TypePlastic (Not included in Package)
Product Dimensions29.49″D x 17.99″W x 31.26″H
Item Weight93 Pounds
Size-1
Finish White 
Water Consumption1.28 Gallons per Flush
Flush TypeGravity Flush
Handle/Lever PlacementLeft
Number of Handles1
CertificationWatersense
Included ComponentsProduct Only
Warranty DescriptionOne-year limited warranty
Rough in12 inches
  • Construction and Design

Made with high-quality vitreous china material, the Kohler K-3999-0 Highline toilet offers durability and resistance to staining, scratching, and fading. Its white finish adds a clean and timeless aesthetic to your bathroom.

With toilet dimensions of 29.49″D x 17.99″W x 31.26″H, this two-piece toilet features an elongated bowl shape that offers improved comfort and a seat height compared to a standard chair.

  • Comfort Height

The comfort height feature of this Kohler toilet ensures ease of use for people of all ages. With a seat height comparable to a standard chair, sitting down and standing up becomes more comfortable and convenient. It is beneficial for individuals with mobility issues or elderly users who may find it challenging to use standard height toilets.

  • Class Five Flushing Technology

The Class Five flushing technology provides excellent bulk waste flushing performance and provides exceptional bowl cleanliness. The powerful flushing system effectively removes waste with each flush to decrease the chances of clogs and reduce the need for double flushing. Kohler claims the result will be a cleaner bowl and improved hygiene.

  • 12-Inch Rough-In

The Kohler K-3999-0 Highline toilet has a 12-inch rough-in which makes it compatible with most standard installations. The versatile feature ensures that the toilet can be easily installed in different bathroom layouts without additional adjustments or modifications.

  • WaterSense Certified

This toilet meets the strict EPA flushing guidelines, including using at least 20 percent less water than 1.6-gallon toilets. With a water consumption rate of only 1.28 gallons per flush (GPF), it helps conserve water without compromising performance. The WaterSense certification not only helps reduce water usage, but it can also contribute to lower water bills and environmental sustainability.

  • Round-Front Bowl

The round-front bowl design of the Kohler K-3999-0 toilet offers an ideal solution for smaller bathrooms and powder rooms. It helps save space without compromising on comfort or performance.

  • Left-Hand Polished Chrome Trip Lever

The toilet is equipped with a left-hand polished chrome trip lever that adds a touch of elegance to the overall design. The trip lever allows for easy flushing with a simple press or lift.

  • Warranty

Kohler is offering one year limited warranty for Kohler K-3999-0 toilet.

  • Performance

The Kohler K-3999-0 Highline toilet offers reliable and efficient performance. Its Class Five flushing technology ensures effective waste removal to reduce the chances of clogs and promote a cleaner bowl. The 1.28 GPF water consumption rate, combined with the efficient flushing system, helps save water without compromising flushing power. The elongated bowl shape adds to user comfort, while the comfort height design makes it easier for individuals of all ages to sit and stand.

Goods
  • Durable vitreous china construction offers long-lasting performance and resistance to stains and scratches.
  • Comfort height design provides added convenience and comfort, particularly for people with mobility issues or the elderly.
  • WaterSense certification promotes water conservation without compromising flushing performance and leads to lower water bills and environmental sustainability.
  • Powerful Class Five flushing technology effectively removes waste and decreases the chances of clogs and maintaining bowl cleanliness.
  • Round-front bowl design offers an ideal solution for smaller bathrooms and powder rooms.
  • Left-hand polished chrome trip lever adds an elegant touch to the overall design.
  • Easy installation with pre-installed tank bolts saves time and simplifies the setup process.
Bads
  • There is no dual flush technology which means you have to deal with the full flushing.
  • Seat is not included in the package and you have to purchase it separately which increases the overall toilet cost.

Plumber Recommendation

Based on the features and performance of Kohler K-3999-0 Toilet, plumbers recommend it for small bathroom. If you have large waste to deal with, we recommend choosing another Kohler toilet with high MAP score to prevent clogging or leaking problems.

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