Kohler toilets, a well-known toilet manufacturer, is no exception to quality product. Today we’re looking at just one of Kohler’s toilet models, the Highline. Let’s take a look to see what the Highline has to offer in our full review below.
We’ll also compare it to one of Kohler’s other options, to see how it stacks up.
Table of Contents
The Review of the Kohler Highline Toilet (Updated)
“The Highline is high-class. The sleek model is both aesthetically pleasing and long-lasting.”
- Flushing Score:
- Water Consumption: 1.28
- Bowl Shape:
- Flushing System:
- Flush Type: Single
- Style: Two-Piece
- Certifications: ADA,
- Dimensions (sourced from manual): Toilet (29.75″ x 18.13″ x 31.25″), (12″), (2.12″), (16.5″)See image with dimensions
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Flushing Performance
The Highline uses Kohler’s Class Five flushing technology to reduce the likelihood of clogs. The single-flush gravity system utilizes gravitational force for an extra-strong flushing siphon. Kohler optimizes siphon strength through its specially engineered tank, bowl, and trapway.
The Highline uses 1.28 gallons per flush, saving you about 20 percent on your annual water bill, when compared to traditional 1.6gpf models. The toilet is EPA WaterSense-certified and is eligible for consumer rebates in some municipalities.
Design
This vitreous china two-piece toilet looks and feels good from the get-go. At first glance, you’ll notice the angular structure of the tank, which gives the model a fresh look. The toilet comes in white, biscuit, and black black.
The extra-comfortable elongated bowl helps disperse user body weight , elevating user experience. The Highline is a Comfort Height toilet, with a seat height of 16.5”. The toilet comes with a tank, tank cover, bowl, trip lever, and bolt cap accessory pack. A supply line and wax ring are not included but are needed for installation.
One of the best parts of this toilet is its easy installation process. Thanks to the three-bolt quick-connect installation, you won’t need professional help! Simply install the floor-mount/floor outlet toilet according to Kohler’s beginner-friendly instructions.
Recommended Accessories
If you want to deck out this affordable toilet with some luxurious accessories, Kohler has a wide array of compatible products that go great with the Highline. Consider upgrading to the Cachet Quiet Close toilet seat to avoid any unintentional slamming or the Purefresh elongated seat which comes with its own deodorizing system.
The Highline is also compatible with the C³-420 elongated bidet seat, perfect for those looking for a bidet alternative.
Color Options
- White (0)
- Biscuit (96)
- Black Black™ (7)
Compatible Seats
- K-4636 Cachet® Quiet-Close™
- K-26132-CSP C³®-420
- K-5588 Purefresh® Elongated Toilet Seat
Product Documentation
- Spec Sheet (PDF)
- Product Install Guide (PDF)
- Manufacturer Product Listing
- 1.28 GPF and Class Five flushing technology
- Comfort Height toilet with elongated bowl
- Simple three-bolt quick connect installation
- Supply line and wax ring not included
- Not ADA compliant
- Issues with shipping
Summary of Recent Reviews
Users boast about the Highline’s clog-free flushing performance, noting the toilet’s reliable suction strength. Users also like the toilet’s sleek look that blends into any bathroom aesthetic. The most common complaint is about the toilet’s state upon delivery. Users report receiving the toilet broken in the mail and having to call Kohler’s support center for another unit.
Comparisons – Kohler Highline vs. Wellworth
This unit is on the lower end of Kohler’s line of toilets. While it’s not their most basic model, it certainly lacks some of the luxury features that the pricier designs have incorporated.
However, Kohler has engineered the Highline to still perform at a high level, even though it does so with more basic technologies. For instance, rather than the Revolution 360 flush system, it uses a more basic Class Five flush valve. This toilet also lacks the self-cleaning features and antimicrobial surface coatings that Kohler has made standard on their other models.
Let’s compare the Highline to Kohler’s most basic model, the Wellworth, to see how the two stack up.
| Wellworth | Highline |
| Available in 4 colors | Available in 3 colors |
| Two-piece toilet with elongated bowl | Two-piece toilet with elongated bowl |
| 1.28 gpf | 1.28 GPF |
| 14.5” seat height | 16.5” seat height |
| Standard installation | 3-bolt quick-connect installation |
| EPA, DOE certified | EPA, DOE, ADA certified |
| Average customer rating: 4.3/5 | 4.5/5 |