- One-piece configuration provides a uniform look and simplifies installation
- Compact-elongated bowl offers comfort and convenience of an elongated bowl while occupying the same space as a rount-front bowl
- Covered under Kohler's 1 year limited warranty
- The Tresham Collection is steeped in the traditions of classic Americana, bringing a playful eccentricity and eclectic elegance to the bathroom
- Constructed of durable, easy to clean vitreous china
- Installs in a floor mounted configuration
- Features a powerful gravity flush with AquaPiston technology
- ADA compliant - complies with the standards for toilets set forth by the Americans with Disabilities Act
- Comfort Height - designed for ease of use, with a higher than average bowl
- WaterSense certified - toilet uses 20% less water than the current standard while still maintaining superior performance
- Concealed trapway - a built-in skirt hides the discharge passageway from view, for a smoother, less utilitarian appearance
- Skirted trapway simplifies cleaning
- Best in class installation methods allowing for 10, 12, or 14 inch rough ins
- 10 and 14 inch kits sold separately (K-5381 and K-5383)
- Includes a soft close seat with cover
Product Technologies / Benefits:
- Easy to Clean: One-piece toilets integrate the tank and bowl into a seamless easy-to-clean design. Because the toilet's shape has fewer crevasses than two-piece models, there are not as many spaces for dirt to hide. This model also features a fully skirted trapway, meaning that the sides of the toilet are smooth and flat. This feature simplifies cleaning and offers a look that is aesthetically pleasing as well.
- Simplified Installation: The Tresham one-piece toilet features an innovative trapway installation system. The system anchors the toilet to the floor for a secure, caulk-free installation. The standard 12" rough-in requires no drilling, no special tools and is easy to install on all floor types. There are also kits available to accommodate 10 and 14 inch rough-in installations.
- AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness.
- Comfort Height: Comfort Height toilets offer the greatest accessibility and ease of use with a bowl height of between 16-1/2" and 18", the same as a standard chair.
- WaterSense Certified Product: To help make a difference on a global scale and to further its role as an industry leader in eco-performance practices, Kohler has established partnerships with a number of environmental organizations, including WaterSense. Many Kohler faucets and toilets are equipped with low-flow technology - they use less water, while continuing to meet superior performance standards.
- Overall Height: 28-1/2" (measured from bottom of base to top of tank)
- Overall Depth: 28-1/4" (measured from back of tank to front of rim)
- Overall Width: 17-5/16" (measured from rightmost to leftmost edge of toilet)
- Bowl Height: 16-1/2" (measured from floor to bowl rim)
- Flow Rate: 1.28 GPF (gallons per flush)
- Water Area: 9-5/8" x 6-7/8" (inner rim dimensions of bowl, length x width)
- Water Depth (from Rim): 5-3/8"
- Tank Width: 17-5/16" (measured from leftmost to rightmost edge of tank)
- Tank Depth: 7-11/16" (measured from back edge to front edge of tank)
- Trapway (Discharge Passageway) Size: 2-1/2"
- Distance Between Toilet Seat Installation Holes: 5-1/2"
- Rough-In: 12"
This product is listed under the following manufacturer number(s):
- Kohler K-3981-47*
- Kohler K-3981-96*
- Kohler K-3981-7*
- Kohler K-3981-K4*
- Kohler K-3981-NY*
- Kohler K-3981-95*
- Kohler K-3981-33*
- Kohler K-3981-G9*
- Kohler K-3981-58*
- Kohler K-3981-0
*Denotes a finish or option that has been discontinued.
Dimensions and Measurements
Characteristics and Features
Warranty and Product Information
How to remove and install a Toilet
If you have been considering replacing your toilet, yet are wondering how complicated of a job this is? Take a moment and we'll show you just how simple this job can actually be.
KOHLER K-3981 Tresham One Piece Toilet Installation
Installation of the K-3981, Tresham One-Piece Skirted Toilet.