Kohler K-6428 Features:

One-piece configuration provides a uniform look and simplifies installation
Elongated bowl offers comfort and convenience, extending out an extra 1-1/2" compared to a round configuration
Covered under Kohler's 1 year limited warranty
Constructed of vitreous china
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
Includes a soft close seat with grip-tight cover

Kohler K-6428 Technologies / Benefits:

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.

Kohler K-6428 Specifications:

Overall Height: 28-1/4" (bottom of base to top of tank)
Overall Depth: 27-3/4" (back of tank to front of rim)
Overall Width: 18-1/4" (rightmost to leftmost edge of toilet)
Bowl Height: 16-1/2" (floor to bowl rim)
Flow Rate: 1.28 gallons-per-flush
Water Area: 9-5/8" x 7-3/8" (inner rim dimensions of bowl, length x width)
Water Depth (from Rim): 5-3/8"
Tank Width: 18-1/4" (leftmost to rightmost edge of tank)
Tank Depth: 7-7/16" (back edge to front edge of tank)
Trapway (Discharge Passageway) Size: 2-1/8"
Distance Between Toilet Seat Installation Holes: 5-1/2"
Rough-In: 12"
- 10" Rough-In available with separate purchase of K-5383 (10" Rough-in Full skirt trap and attachment system)
- 14" Rough-In available with separate purchase of K-5381 (14" Rough-in Full skirt trap and attachment system)