Item # bci2436375

Kohler Underscore 72" Soaking Tub with Center Drain and Bask Heating Technology

Model: K-1137-W1-58

from the Underscore Collection
$3,135.93
Finish: Choose Finish
  • Biscuit
  • Black Black
  • Dune
  • Ice Grey
  • Thunder Grey
  • White
  • Biscuit
    Biscuit
    $3,036.60
    Special Order
  • Black Black
    Black Black
    $3,135.93
    Special Order
  • Dune
    Dune
    $3,036.60
    Special Order
  • Ice Grey
    Ice Grey
    $3,036.60
    Special Order
  • Thunder Grey
    Thunder Grey
    $3,135.93
    Special Order
  • White
    White
    $2,856.00
    Special Order

Free Shipping!

Leaves the Warehouse in 6 to 11 weeks
Special Order

Product Overview

This product has additional required/recommended options. To configure, add to your cart.

  • Drain Assembly
    Drain Assembly Required
  • Undermount Kit
    Undermount Kit Recommended

Product Features:

  • Kohler tubs are fully covered under warranty for up to a year after installation
  • Tub constructed of acrylic, a strong and flex-resistant material that is chip-resistant and easy to clean
  • Soaking tub - provides the user with a soothing and relaxing bathing experience
  • Streamlined for simplicity, baths from the Underscore collection exude refined style and contemporary flair
  • Installs in a drop-in or undermount configuration
  • Tub comes standard with molded lumbar support, furthering the user's comfort
  • Equipped with an overflow assembly, permitting the user to enjoy a deep soak without worrying about spillage
  • A built-in heater keeps the water at the desired temperature as the user enjoys a long soak without the water getting cold
  • Product Meets or Exceeds the Following Codes/Standards: CSA B45.5; ASME A112.19.7; UL 1795

Product Technologies / Benefits:

  • Material - Acrylic: A strong, flex resistant material with a smooth finish that is easy to clean and resists chipping and cracking.
  • Bask: Bask heated surfaces warm the neck and back in addition to the bathwater, creating a spa-like environment. Three temperature settings allow for the ultimate in bathing relaxation.

Product Specifications:

  • Overall Height: 23" (measured from top of tub rim to bottom of basin)
  • Overall Width: 42" (measured from back most to front most point on outer rim)
  • Overall Length: 72" (measured from left most to right most point on outer rim)
  • Basin Width (Bottom): 32" (back to front measurement at bottom of basin walls
  • Basin Length (Bottom): 45-3/4" (left to right measurement at bottom of basin walls)
  • Basin Width (Top): 36" (back to front measurement at top of basin walls)
  • Basin Length (Top): 66" (left to right measurement at top of basin walls)
  • Water Depth: 19" (depth of water at tub's maximum capacity)
  • Maximum Water Capacity: 139 gallons
  • Drain Location: Center
  • Drop-In Cutout Required: 70-1/2" x 40-1/2"
  • Requires 110V electrical service

Variations of K-1137-W1:

  • K-1137: soaking bath version of this tub
  • K-1174-G: bubblemassage air bath version of this tub
  • K-1174-GCR: bubblemassage air bath and chromatherapy version of this tub
  • K-1174-GCW: bubblemassage air bath and bask heated surface and chromatherapy version of this tub
  • K-1174-GVB: vibracoustic and bubblemassage air bath version of this tub
  • K-1174-GVBCW: vibracoustic and bubblemassage air bath and bask heated surface and chromatherapy version of this tub
  • K-1174-GW: bubblemassage air bath and bask heated surface version of this tub
  • K-1174-H2: whirlpool and heater version of this tub
  • K-1174-VB: vibracoustic version of this tub
  • K-1174-VBC: vibracoustic and chromatherapy version of this tub
  • K-1174-VBCW: vibracoustic and chromatherapy and bask heated surface version of this tub
  • K-1174-VBW: vibracoustic and bask heated surface version of this tub
  • K-1174-XH2G: whirlpool and bubblemassage air bath version of this tub

This product is listed under the following manufacturer number(s):


*Denotes a finish or option that has been discontinued.

Dimensions and Measurements

Basin Depth
22 in.
Capacity (Gallons)
139
Height
23 in.
Length
72 in.
Nominal Length
72 in.
Nominal Width
42 in.
Overflow Height
20, 19 in.
Product Weight
85 lbs.
Tub Size
Over 60 Inches
Water Depth
19 in.
Width
42 in.

Included Components

Drain Assembly Included
No
Heater Included
Yes
Light Included
No
Tile Flange
No
Walk-In Tub
No

Characteristics and Features

Apron Front
No
Control Type
Electronic
Drain Placement
Center
Installation Type
Drop In, Undermount
Material
Acrylic
Number Of Bathers
1, 2
Overflow
Yes
Self Leveling Base
No
Slip Resistant
No
Theme
Modern
Tub Shape
Rectangular

Manufacturer Technology

Bask Heated Surface
Yes
BubbleMassage
No
Chromatherapy
No
VibrAcoustic
No

Electrical and Operational Information

Amperage
1.1
Frequency
60 Hertz
Voltage
120

Warranty and Product Information

ADA
No
ASME Code
A112.19.7
Certifications
ASME, UL, CSA
Collection
Underscore
CSA Code
B45.5
Manufacturer Warranty
1 Year Limited
Product Videos
  • Kohler Bask Heated Surfaces compliment the temperature of the bath water by warming the neck shoulders and back for a soothing spa-like experience.
    Kohler Hydrotherapy - Bask Heated Surface
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  • Kohler Underscore Tubs feature a simple crisp design. They come in many configurations, sizes and colors.
    Kohler Underscore Baths
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Kohler Hydrotherapy - Bask Heated Surface

Kohler Hydrotherapy - Bask Heated Surface

Kohler Bask Heated Surfaces compliment the temperature of the bath water by warming the neck shoulders and back for a soothing spa-like experience.

Kohler Underscore Baths

Kohler Underscore Baths

Kohler Underscore Tubs feature a simple crisp design. They come in many configurations, sizes and colors.