Name: KOHLER® Highcliff™ Ultra Biscuit Floor-Mount Top Spud Flushometer Bowl
Brand: Kohler
SKU: 2178645
Availability: OutOfStock

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Installation Sheet.pdf

KOHLER® Highcliff™ Ultra Biscuit Floor-Mount Top Spud Flushometer Bowl-1

image-Photoroom - 2026-05-22T185623.760.jpg

Parts Sheet.pdf

Specification Sheet.pdf

Warranty.pdf

The Highcliff Ultra floor-mount flushometer bowl features a revolutionary flushing engine and refined aesthetic design. Measuring 16-7/8" to the top of the rim, the Highcliff Ultra meets both ADA and CSA height requirements. The Ultra engine represents a breakthrough in flush performance, tolerating a wide range of water supply conditions found in R&R and new construction. The Highcliff Ultra top spud is listed from 1.0 to 1.6 gpf and performs well at every flush interval, making it uniquely effective with dual flush valves. It has been proven with all manner of valves (diaphragm, piston, manual, and electronic) from a variety of manufacturers.

The Highcliff Ultra floor-mount flushometer bowl features a revolutionary flushing engine and refined aesthetic design. Measuring 16-7/8" to the top of the rim, the Highcliff Ultra meets both ADA and CSA height requirements. The Ultra engine represents a 

KOHLER® Highcliff™ Ultra Biscuit Floor-Mount Top Spud Flushometer Bowl

Highcliff™ Ultra Floor-Mount Top Spud Flushometer Bowl

Elongated bowl offers added room and comfort

1.0 gpf (3.8 lpf), 1.1 gpf (4.2 lpf), 1.28 (4.8 lpf), or 1.6 gpf (6.0 lpf) depending on flushometer specified

Also available with antimicrobial finish K-96057-SS