Kohler K-1257 Roughing-In Manual page 2

7-1/2"
(19.1 cm)
18"
(45.7 cm)
1-13/16"
10-1/4" (26 cm)
(4.6 cm)
3-1/2"
(8.9 cm)
3"
(7.6 cm)
Product Information
Applicable product:
Drop in rim style, custom pump location
Fixture:*
Bathing well:
Basin area, bottom 50" (127 cm) x 24" (61 cm)
Basin area, top 65" (165.1 cm) x 27" (68.6 cm)
Weight 115 lbs (52 kg)
To overflow:
Water depth 14" (35.6 cm)
Capacity 72 gal (272.5 L)
* Approximate measurements for comparison only.
Drop-in cut-out 70" (177.8 cm) x 34" (86.4 cm)
Pump:
1-speed
Heater 1.5 kW
Required Electrical Service (2 required)
Two dedicated circuits required, each protected with Class A
Ground-Fault Circuit-Interrupter (GFCI):
Pump/control
Heater
Locate the outlets behind the whirlpool and within 24" (61 cm)
of the pump.
1012658-1-C
K-1257-HB
Pump/Control Access
20" (50.8 cm) W x
15" (38.1 cm) H Min
72" (182.9 cm)
2-7/8"
1" (2.5 cm)
(7.3 cm)
K-1257-HB
V Hz A
120 60 7.5
120 60 12.5
120 V, 15 A, 60 Hz
120 V, 15 A, 60 Hz
No change in measurements with drain
shown. (K-7166-AF or K-7166M-AF)
Recommended faucet area.
36" (91.4 cm)
20"
18-1/2"
(50.8 cm)
(47 cm)
1-1/2" OD
Notes
Install this product according to the installation guide.
Floor support under whirlpool must provide for a minimum of
41 lbs/square foot (199.6 kg/square meter) loading.
The apron must be installed before the finished floor and wall
materials are installed.
A minimum access panel is required as illustrated. This should be
20" (50.8 cm) wide and 15" (38.1 cm) high. Locate the access panel
at the pump location.
This fixture conforms to ANSI Standard Z124.1.2. All dimensions
are nominal.
2
1-1/2"
(3.8 cm)
Drop-In
Rim Detail
Kohler Co.