Kohler CO
KALLISTA
KLAFS
KAST

Select Project Location

Displays product catalog available in your selected location.

Collections
Fixtures
ModernLife™
Veil™
Memoirs™
Featured Collections
Artist Editions
Faucets
Avid™
Components™
Composed™
Purist™
Parallel™
July™
Artifacts™
Performance Showering
Statement™
Anthem™
Components™ Collection
Expolore Components™
Bathroom
Bathroom Sink Faucets
Widespread Faucets
Single Control Faucets
Centerset Faucets
Wall Mounted Faucets
View All Bathroom Sink Faucets
Bathtub & Shower Faucets
Bathtub Faucets
Valves and Trims
Bathroom Sinks
Artist Editions Sinks
Undermount Sinks
Drop In Sinks
Vessel Sinks
Pedestal Sinks
Console Sinks
Wall Mounted Sinks
View All Bathroom Sinks
Showers
Rainheads
Shower Heads
Handshowers
Body Sprays
Shower Valves & Trim
Smart Showers
Steam Showers
Shower Doors
Shower Bases
Shower Columns & Kits
Shower Drains
Shower Fittings
View All Showers
Bathtubs
Freestanding Bathtubs
Alcove Bathtubs
Drop-in Bathtubs
Hydrotherapy Bathtubs
View All Bathtubs
Toilets
Smart Toilets
One-Piece Toilets
Two-Piece Toilets
Tall Toilets
Wall-Hung Toilets
View All Toilets
Toilet Seats
Bidet Seats
View All Toilet Seats
Numi™ 2.0
Explore Smart Toilets
Kitchen
Kitchen Sinks
Cast Iron Sink
Stainless Steel Sinks
Neoroc Sinks
Farmhouse Sinks
Vitreous Sink
View All Kitchen Sinks
Kitchen Faucets
Pull Down Faucets
Pull Out Faucets
Bridge Faucets
Pot Filler Faucets
View All Kitchen Faucets
Whitehaven™
Explore Kitchen Sinks
Project References
Project References
View All
Asia Pacific
Kimpton Tsim Sha Tsui - Hong Kong
Andaz Hotel Pattaya Jomtien Beach - Thailand
China
JW Marriot Hotel Xi'an South - China
Park Hyatt - China
Middle East
Ciel Marina - Dubai
Emirates Palace Mandarin Oriental - Abu Dhabi
Latin America
Tamarindo Park - Costa Rica
Ciel Dubai Marina
Explore the Project
Events
International Events
View All
Upcoming Events
Kohler Design Forum Seoul 2026
Past Events
Decorex Joburg 2026
Milan Design Week 2026
Downtown Design Dubai 2025
Index Saudi Arabia 2025
Kohler Signature Store Riyadh Opening
Kohler Design Forum Seoul 2026
Explore the Event
Resources
Resources
Technical Specifications
Literature
Kohler Finishes
Find a Store
About Studio Kohler
Access our technical specification library
Download Design and Technical Files
Contact Us

Typing any keyword in the "Search" input field, updates content below, use up and down arrow or tab keys to access the results

Follow us

Sign up to receive email news, promotions and information about Studio Kohler.

Stores

Kohler Experience Centers
Find A Store

Stores

Kohler Experience Centers
Find A Store

Contact Us

General Enquiry
Request Product Information
Specification Support
Request Technical Documents
Request Product Samples
Request Product Modification
Request Colour & Finish Samples
After‑Sales Support

Contact Us

General Enquiry
Request Product Information
Specification Support
Request Technical Documents
Request Product Samples
Request Product Modification
Request Colour & Finish Samples
After‑Sales Support

Resources

Download Technical Files
Download Literature
Kohler Finishes

Resources

Download Technical Files
Download Literature
Kohler Finishes

About Us

FAQs
About Studio Kohler
Kohler Co.
Kitchen & Bath Brands

About Us

FAQs
About Studio Kohler
Kohler Co.
Kitchen & Bath Brands

Privacy
Cookies Settings
Legal

©Kohler Co. All Rights Reserved

K-1121-W1-0 | Underscore® 60" x 30" drop-in bath with Bask® heated surface | Studio KOHLER®

Home
Bathing
Underscore™

Print

Product info

Specifications

Dimensions

Underscore™

60" x 30" drop-in bath with Bask heated surface

K-1121-W1-0

Color/FinishWhite

Discontinued colors

Add to compare

Compare

More from this Collection

Underscore™

Underscore™

65-1/2" x 35-3/4" drop-in bath with Bask heated surface

K-5715-W1-0

Underscore™

Underscore™

60" x 30" alcove bath with Bask heated surface, right drain

K-1121-RW-0

Underscore™

Underscore™

72" x 42" drop-in bath

K-1137-0

Underscore™

Underscore™

66" x 36" drop-in bath

K-1136-0

Similar Products

Sunstruck™

Sunstruck™

60-1/2" x 34-1/2" freestanding Heated BubbleMassage air bath with fluted shroud

K-24009-GH-0

Archer™

Archer™

60" x 32" alcove bath, left drain

K-1123-LA-0

Archer™

Archer™

72" x 36" alcove bath with Bask heated surface, left drain

K-1125-LAW-0

Mariposa™

Mariposa™

72" x 36" drop-in whirlpool bath

K-1257-CB-0

Streamlined for simplicity, this KOHLER® Underscore bath exudes refined style with contemporary flair. Its heated surface warms the back and neck with adjustable temperature settings to create a spa-like environment. A slotted overflow drain allows for a luxuriously deep 60" x 30" rectangular drop-in bath as you relax against the comfortable sloped backrest.

Design Files

Select All Files

2D Plan

DWG

DXF

2D Front

DWG

DXF

2D Side

DWG

DXF

3D File

3DS

DWG

DXF

OBJ

SKP

DWG Symbol

DXF Symbol

RFA

BIM

Revit

Cutout Template

Interactive

SVG

Guides

Line Art

Features

Bask® heated surface creates spa-like relaxation with soothing warmth on your back, shoulders, and neck
Customize the heat with three adjustable settings
Integral lumbar support
Slotted overflow allows for deep soaking

ADA

Dimensions

Overall Height

19"

Overall Width

30"

Overall Length

60"

Specifications

Specification Sheet

Material

Acrylic

ADA Compliant

Yes

CSA Compliant

No

CalGreen

No

Installation & Service Parts

Product Video Installation Instructions

Underscore™

Underscore™

72" x 36" drop-in bath with Bask heated surface

K-1834-W1-0

Underscore™

Underscore™

60" x 32" alcove bath, left drain

K-1957-LA-0

Underscore™

Underscore™

66" x 36" drop-in bath with Bask heated surface

K-1136-W1-0

Underscore™

Underscore™

59-3/4" x 35-3/4" drop-in Heated BubbleMassage air bath with whirlpool

K-5714-XHGH-0

Underscore™

Underscore™

60" x 30" alcove bath with Bask heated surface, left drain

K-1121-LW-0

Underscore™

Underscore™

60" x 30" alcove Heated BubbleMassage air bath with whirlpool, right drain

K-1167-XHGHR-0

Underscore™

Underscore™

60" x 30" drop-in Heated BubbleMassage air bath

K-1167-GH-0

Underscore™

Underscore™

60" x 30" alcove Heated BubbleMassage air bath with Bask, left drain

K-1167-GHLW-0

Stargaze™

Stargaze™

60" x 34" freestanding Heated BubbleMassage air bath with straight shroud

K-24018-GH-0

Underscore™

Underscore™

65-1/2" x 35-3/4" drop-in bath with Bask heated surface

K-5715-W1-0

Archer™

Archer™

66" x 32" alcove bath, right drain

K-1948-RA-0

Sunward™

Sunward™

72" x 42" drop-in bath

K-1165-0

Sunward™

Sunward™

72" x 42" drop-in whirlpool bath

K-1164-0

Sunward™

Sunward™

60" x 42" drop-in bath

K-1163-0

Sunward™

Sunward™

60" x 42" drop-in whirlpool bath

K-1162-0

Memoirs™

Memoirs™

66" x 42" drop-in bath

K-1169-0

Water Saving Design

No

Installation

Reversible drain
Drop-in or undermount
Requires 110 V electrical service
Requires Clearflo slotted overflow bath drain (sold separately)