Roughing-In
Supply Requirements:
Supply Pipe Size
Toilet
1"
Urinal
3/4"
If the center of the supply pipe is more than 11-1/2" (292 mm) above the fixture, order
a tall tailpiece. If a tall tailpiece is used, make sure the sensor height will detect the
user. Refer to the "Test the Sensor" section.
The vacuum breaker critical level must be a minimum of 6" (152 mm) above the top of
the fixture.
1339618-2-B
4-3/8" (111 mm) Min
5" (127 mm) Max
4-9/16"
(116 mm)
6"
(152 mm)
Min
Static Pressure
Requirement
35 psi (241 kPa) -
80 psi (552 kPa)
25 psi (172 kPa) -
80 psi (552 kPa)
10-9/16"
(292 mm) Min
11-1/2"
(292 mm) Max
4
Minimum Flow Rate
5 gal/min (95 l/min)
10 gal/min (38 l/min)
Kohler Co.