Grohe Axor Citterio M 34010XX1 Installation Instructions Manual page 6

Note: the temperatures given in the diagram assume
a water heater temperature of 140 ° F, a cold water
temperature of 50 ° F and a water pressure of 45 PSI.
Replace the flange.
Replace the handle.
Tighten the handle screw.
Replace the screw cover.
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