Page 1
Underscore® Rectangle
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.
•
Integral flange helps prevent water from seeping behind wall
and simplifies alcove installation.
Material
•
Acrylic.
Installation
•
Right drain.
•
Undermount.
•
Alcove.
•
Requires 110 V electrical service.
Required Products/Accessories
K-7271 Brass Slotted Overflow Bath Drain
or
K-7272 PVC Slotted Overflow Bath Drain
Recommended Products/Accessories
K-1491 Bath/Whirlpool Pillow
K-1601 Bath/whirlpool footstop, removable
K-24916 Wireless Music Kit
K-23726 Drain treatment
K-23732 Tub & shower cleaner
Codes/Standards
CSA B45.5/IAPMO Z124
ASTM E162
ASTM E662
ADA
ICC/ANSI A117.1
KOHLER® Plastic Baths and
Receptors Lifetime Limited
WarrantyKOHLER® Hydrotherapy
Components Five-Year Limited
Warranty
See website for detailed warranty information.
Available Colors/Finishes
Color tiles intended for reference only.
Color Code Description
0 White
96 Biscuit
NY Dune
95 Ice™ Grey
G9 Sandbar
K4 Cashmere
58 Thunder™ Grey
7 Black Black™
60" x 30" alcove bath w/Bask
K-1121-RW
®
1-800-4KOHLER (1-800-456-4537)
Kohler Co. reserves the right to make revisions without notice to product specifications.
For the most current Specification Sheet, go to www.kohler.com.
5-29-2021 13:51 - US/CA
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Underscore® Rectangle
1-1/4"
(32 mm)
20-1/4"
(514 mm)
Access Panel
20" (508 mm) L x 15" (381 mm) H Min
Lumbar
Angle 40°
1-1/2" Bath Drain
No change in measurement if connected
with drain illustrated. (K-7272)
4-1/8"
(105 mm)
13/16"
(21 mm)
12-5/8"
(321 mm)
15"
(381 mm)
3-11/16"
(94 mm)
30"
(762 mm)
60" (1524 mm)
Tile Flange
Detail
1-1/4"
(32 mm)
1"
(25 mm)
Required Electrical Service
One circuit required, protected with Class A Ground-Fault
Circuit-Interrupter (GFCI). Outside North America, this device
may be known as a Residual Current Device (RCD).
Heated Surface: 120 V, 15 A
Technical Information
All product dimensions are nominal.
Installation: Three-wall alcove
Drain location: Right
Basin area, bottom: 42-7/16" x 20" (1078 mm x 508 mm)
Basin area, top: 54-5/16" x 24-1/4" (1380 mm x 616 mm)
Weight: 81 lbs (36.7 kg)
Minimum floor load: 42 lbs/ft² (205.1 kg/m²)
Water depth: 15-1/8" (384 mm)
Water capacity: 59.8 gal (226.4 L)
Electrical component
rating:
Heated Surface: 120 V, 0.5 A, 60 Hz
Minimum flat for
door:
1-15/16" (50 mm)
Notes
Measure your actual product for rough-in
details.
Install this product according to the installation
instructions.
The hot water supply should be 70% of the
capacity of the bath or greater. Installations will
vary.
ADA compliant when installed to the specific
requirements of these regulations.
60" x 30" alcove bath w/Bask
K-1121-RW
®
1-800-4KOHLER (1-800-456-4537)
Kohler Co. reserves the right to make revisions without notice to product specifications.
For the most current Specification Sheet, go to www.kohler.com.
5-29-2021 13:51 - US/CA
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