With its tight corners and long, straight lines, Kohler's Underscore collection of baths offers the best design in all the right sizes. Featuring a contemporary undermount installation, the Underscore perfectly complements the use of natural materials in your bathroom, including granite, stone, and tile. This 5-foot version of the Underscore features Kohler's BubbleMassage, which provides a luxurious experience that envelops you in an adjustable cushion of massaging bubbles via its 122 air jets.


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The dual zones of control at both ends and the midsection of the bath offer the ultimate in customization, allowing complete control of the massage location. The BubbleMassage is controlled by a lighted 3-inch rotating dial, which makes it easy to increase or decrease airflow from the jets for a personalized experience. Additionally, the Chromatherapy lighting encourages your mind and body to relax as a full spectrum of color washes over you. And when the bath is drained, sensors activate an automatic cycle to purge any residual water from the air channels.
The Underscore works with Kohler's Clearflo slotted overflow bath drain (required, available separately), which offers approximately 2 inches of increased soaking depth and a toe tap-style drain. It is installed on one of the ends of the tub.
Providing optimal comfort, the Underscore features a specially molded lumbar support ensures bathing comfort while providing additional floor space in the bath. It measures 60 inches long by 32 inches wide by 21 inches deep, has a water depth of 17-1/8 inches, and offers an 81-gallon capacity. Floor support under the bath must provide for a minimum of 55 pounds per square foot of load, and the hot water supply should be 70 percent of the bath or greater (56.7 gallons). The Underscore also comes in 5.5- and 6-foot sizes in BubbleMassage and standard bath versions in 5-, 5.5-, and 6-foot sizes. It's available in 10 colors, including almond, biscuit, black black, cashmere, dune, ice grey, Mexican sand, sandbar, thunder grey, and white. And it's backed by a 1-year limited warranty.
Underscore 5-foot acrylic BubbleMassage bath with Chromatherapy; blower motor with 300-watt heater; electronic BubbleMassage control; installation instructions.
Note: Slotted overflow drain is required for installation and is available separately (model K-7272 or K-7271 in brass). Additionally, 240-volt hard-wire electrical service is required.
![]() Sleek contemporary lines with drop-in or undermount installation (6-foot version shown with standard slotted overflow drain). |