Dimensions Guide

Lumbar
Notes
Required Electrical Service
Measure your actual product for rough-in details.
One dedicated circuit required, protected with Class A
Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device
(RCD).
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.
240 V, 15 A, 50/60 HzBlower, Heated
Surface:
Technical Information
Kit is required for under-mount installations (sold
separately).
All product dimensions are nominal.
Drop-in, Under-mountInstallation:
If relocating the blower motor, do not relocate or
alter the PVC tee or coiled flexible tubing
CenterDrain location:
45-3/4" x 32" (1162 mm x 813 mm)Basin area, bottom:
connected to the blower. Follow the blower
relocation instructions exactly. Provide access
for servicing the blower.
66" x 36" (1676 mm x 914 mm)Basin area, top:
116 lbs (52.6 kg)Weight:
42 lbs/ft² (205.1 kg/m²)Minimum floor load:
19" (483 mm)Water depth:
139 gal (526.2 L)Water capacity:
Drop-in, 70-1/2" x 40-1/2" (1791 mm x
1029 mm)
Cutout:
Blower: 240 V, 5 A, 50/60 Hz
Heated Surface: 240 V, 0.5 A, 50/60 Hz,
65 W
Electrical component
rating:
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.
9-28-2018 08:47
Underscore
®
Rectangle
6' BubbleMassage
™
Bath
K-1174-GCW