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Technical Information
Water pressure
Recommended
Maximum
Hot water temp.
Recommended 120°-140° F (48° - 60° C)*
Maximum
Max. flow rate
31088xx1, 31080xx1
31183xx1
31204xx1
31123xx1
31280XX1
Hole size in mounting surface
Max. depth of mounting surface
* Please know and follow all applicable local plumb-
ing codes when setting the temperature on the water
heater.
Installation Considerations
• For best results, Hansgrohe recommends that
this unit be installed by a licensed, professional
plumber.
• Please read over these instructions thoroughly
before beginning installation. Make sure that
you have all tools and supplies needed to
complete the installation.
• The drain is suitable for most, but not all, lavatory
sinks sold in the United States and Canada.
• The drain is intended for use in a sink with an
overflow. If your sink does not have an overflow,
or if this drain is too small for the hole in your
sink, please refer to the instructions
included with the sink. Some sinks include
special drain installation instructions and/
2
15 - 75 PSI (0.1 - 0.5 MPa)
145 PSI (1 MPa)
158°F (70° C)*
1.2 GPM (6.6 L/min)
1.0 GPM (3.8 L/min)
0.5 GPM (1.9 L/min)
2.2 GPM (8.3 L/min)
1⅜" (34 mm)
1⅝" (40 mm)
or parts. Others require the use of a specialty
drain. Hansgrohe is not respnsible for the cost
of a specialty drain.
• 31204XX1, 31121XX1 only: This unit does
not include a drain or a pull rod.
• 31280XX1 only: The discharge water
temperature from a bidet fitting shall be limited
to a maximum temperature of 110ºF (43ºC) by
a water temperature limiting device conforming
to ASSE 1070.
• Keep this booklet and the receipt (or other proof
of date and place of purchase) for this product in
a safe place. The receipt is required should it be
necessary to request warranty parts.